Quiz_Random

1. Chemoautotrophic bacteria are bacteria that derive their energy from chemical reactions and:

 
 
 
 

2. White rust of crucifers is caused by:

 
 
 
 

3. Saccharomyces is used in:

 
 
 
 

4. The process of transformation in bacteria does not require:

 
 
 
 

5. If a sporangium developed from a group of cells it is called:

 
 
 
 

6. The term stele was given by:

 
 
 
 

7. The stem-like character of rhizophore of Selaginella is:

 
 
 
 

8. Downy mildew disease is caused by :

 
 
 
 

9. Infective portion of a virus is nucleic acid, this was discovered by:

 
 
 
 

10. “Families of flowering plants” Vol I (1926) and Vol II (1934) was written by:

 
 
 
 

11. Green plants are classified as :

 
 
 
 

12. Eligulate, eusporangiate, homosporous, protostelic pteridophyte is:

 
 
 
 

13. Who named prion?

 
 
 
 

14. Ergot of rye is caused by:

 
 
 
 

15. Winged pollen grains are found in :

 
 
 
 

16. The fact that best supports the concept that viruses are living is that viruses:

 
 
 
 

17. Under suitable conditions, some bacteria are capable of reproducing by binary fission once every half hour. Suppose you placed a single bacterium in a culture medium and it (and its descendants) proceeded to reproduce at this rate. How many bacteria would be present after 5 hours?

 
 
 
 

18. Atracheata term has been used by Oswald Tippo for :

 
 
 
 

19. One of the algae can be used as food in the space flight. It is :

 
 
 
 

20. The alga, Spirogyra are found in :

 
 
 
 

21. According to Woese, fungi were placed in the domain :

 
 
 
 

22. The species which are highly restricted in distribution are called:

 
 
 
 

23. Coralloid roots of Cycas is distinguished from Angiosperm roots by :

 
 
 
 

24. Mycoplasma are:

 
 
 
 

25. Coenogamete is found in:

 
 
 
 

26. A number of short stalked sporangia attached with placenta and covered by indusium is called:

 
 
 
 

27. Protistan algae obtain their food as:

 
 
 
 

28. Viruses are considered to be:

 
 
 
 

29. In Cycas wood most of the tissue is made up of :

 
 
 
 

30. A group of genera which show general structural resemblances to one another mainly in their floral organs is referred to as:

 
 
 
 

31. Which is an edible fungus?

 
 
 
 

32. Agar-agar and algin are the product of:

 
 
 
 

33. Lichens are ecologically important because :

 
 
 
 

34. Infective nature of Tobacco mosaic disease was discovered by:

 
 
 
 

35. Red rot of sugarcane is caused by:

 
 
 
 

36. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

37. ‘Red snow’ is caused by which of the following in alpine region?

 
 
 
 

38. Virion refers to:

 
 
 
 

39. Green plants without root, stem and leaves, but with a simple usually filamentous plant body are called:

 
 
 
 

40. Which scientist in 1884 developed a valuable method of staining the bacteria?

 
 
 
 

41. Cellular slime mold is:

 
 
 
 

42. Liverworts are included in :

 
 
 
 

43. In the five kingdom system of classification, slime molds are included in:

 
 
 
 

44. The nucleus of bacteria is:

 
 
 
 

45. Embryophyta includes:

 
 
 
 

46. In moss, stomata are found:

 
 
 
 

47. Which is a tautonym?

 
 
 
 

48. Cryptogams include :

 
 
 
 

49. Doctors usually boil their syringe and other surgical instruments before use:

 
 
 
 

50. The root nodules of leguminous plants contain:

 
 
 
 

51. D.C. Gajdusek was awarded the Nobel Prize for discovery of prion based diseases in:

 
 
 
 

52. First animal pathogenic virus was discovered by:

 
 
 
 

53. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

54. The importance of study of parasitic fungi is that they are:

 
 
 
 

55. Embryophyta includes :

 
 
 
 

56. Elongated structure on upper cortex of lichen, having some algal and fungal partners as in main thallus is :

 
 
 
 

57. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

58. The number of androcytes in male prothallus of Selaginella are:

 
 
 
 

59. Reproduction in Rhizopus is:

 
 
 
 

60. Which one is the smallest organism capable of autonomous growth and reproduction?

 
 
 
 

61. According to the fossil record, which event has occurred most recently?

 
 
 
 

62. A lichen having a branching form and growing either prostrate or erect on the ground is called :

 
 
 
 

63. Sleeping sickness disease in man is caused by:

 
 
 
 

64. Which type of sexual reproduction is found in C. debaryana?

 
 
 
 

65. Rhizopus is also commonly known by the name of:

 
 
 
 

66. Facultative saprophyte is:

 
 
 
 

67. The prothallus of fern represents the plant:

 
 
 
 

68. Mycoplasma contains:

 
 
 
 

69. The antibiotic is obtained from:

 
 
 
 

70. Pteridophyta are also called:

 
 
 
 

71. The scientist who is famous for his research on rust fungi in India is :

 
 
 
 

72. In moss, calyptra is formed from:

 
 
 
 

73. Genetic material of TMV is:

 
 
 
 

74. Who is known as ‘Father of Taxonomy’?

 
 
 
 

75. Photoautotrophic bacteria have:

 
 
 
 

76. Germination of the seed of Pinus is :

 
 
 
 

77. The upper region of moss capsule is :

 
 
 
 

78. The microsporophylls on the cone of Cycas are :

 
 
 
 

79. To introduce a foreign gene in a plant, which one is used?

 
 
 
 

80. Which type of sexual reproduction is found in C. coccifera?

 
 
 
 

81. A perennial that bears flowers and fruits once in a life time is known as :

 
 
 
 

82. The causal organism of early blight of potato is :

 
 
 
 

83. Development of sporophyte from gametophyte without sexual reproduction is called :

 
 
 
 

84. What is a vector?

 
 
 
 

85. Which type of sexual reproduction is found in Volvox?

 
 
 
 

86. Pseudomycelium is found in:

 
 
 
 

87. Non-porous wood for furniture is produced by:

 
 
 
 

88. Waksman was awarded Nobel Prize for the discovery of:

 
 
 
 

89. If a disease appear on large scale after a long interval it is :

 
 
 
 

90. Which is the hydrogen donor in the bacterial photosynthesis?

 
 
 
 

91. In the life of all plant groups, the first cell of gametophytic generation is:

 
 
 
 

92. Enteric bacteria are those bacteria that live:

 
 
 
 

93. ‘Die naturlichen Pflanzen Familien’ which runs into 20 volumes was written by:

 
 
 
 

94. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called :

 
 
 
 

95. The chief characteristic of class Ascomycetes is:

 
 
 
 

96. The fungi that grow on wood are called:

 
 
 
 

97. Generic name of mango is:

 
 
 
 

98. Bryophyta have been placed in cryptogams because:

 
 
 
 

99. Special feature of pollen grains of Pinus is :

 
 
 
 

100. Lichens reproduce by :

 
 
 
 

101. In moss, reduction division occurs in :

 
 
 
 

102. Which one of the following is an endozoic algae?

 
 
 
 

103. Economic importance of bacteria lies in their being:

 
 
 
 

104. Water-borne bacterial diseases are:

 
 
 
 

105. The label of a herbarium sheet does not carry information of:

 
 
 
 

106. In a bacteriophage, DNA is present in:

 
 
 
 

107. Richest source of protein, becoming popular throughout world and available in the Indian market also:

 
 
 
 

108. Bacteria which are spherical are called:

 
 
 
 

109. Which fixes atmospheric nitrogen?

 
 
 
 

110. Columella is a specialized sterile structure found in sporangium of:

 
 
 
 

111. Members of the genera Azotobacter and Rhizobium are important because they:

 
 
 
 

112. Haplo-diplo-haplontic type triphasic life cycle occurs in:

 
 
 
 

113. A plasmid found in some bacteria can integrate reversibly with the chromosome of its host and then it behaves as part of the host chromosome, multiplying with it What is this plasmid known as?

 
 
 
 

114. Protists which are diploid reproduce sexually by:

 
 
 
 

115. The biological term used to describe two organisms living together and beneficial to each other is:

 
 
 
 

116. Bacteria species of Thiobacillus and Beggiatoa play an important role in the:

 
 
 
 

117. Chrysophytes, Euglenoides, Dinoflagellates, and slime molds are included in the kingdom:

 
 
 
 

118. Azolla and Salvinia both are:

 
 
 
 

119. In Molecular Biology, E coli has been used in studying:

 
 
 
 

120. Parmelia belongs to :

 
 
 
 

121. Heterospory is the production of:

 
 
 
 

122. Some of the species of Selaginella are commonly called:

 
 
 
 

123. Prof. R.N. Singh has noteworthy contributions in the field of:

 
 
 
 

124. The antheridia of fern are different from that of moss in the sense that they produce:

 
 
 
 

125. Evidence in support of root-like nature of Selaginella rhizophore is:

 
 
 
 

126. For the production of which microbial action is not required?

 
 
 
 

127. Which of the following organism has characters of both animals and plants?

 
 
 
 

128. The word “sea weeds” is used for:

 
 
 
 

129. Pinus microsporophyll bears:

 
 
 
 

130. TMV was isolated in crystalline form by:

 
 
 
 

131. Photosynthetic bacteria have:

 
 
 
 

132. True sexuality is not found in:

 
 
 
 

133. Sweet scented lichen thalli used for making soaps, cosmetics are :

 
 
 
 

134. Which of the following plants does not have archegonium?

 
 
 
 

135. Which bacteria convert nitrate into nitrogen?

 
 
 
 

136. The number of neck canal cells in Cycas are:

 
 
 
 

137. Which of the following is true for viruses?

 
 
 
 

138. Most of the members of the genus Bacillus are known for:

 
 
 
 

139. When milk or other products are heated for about half an hour at about 62°C and then cooled, the process is called:

 
 
 
 

140. Bacteria which convert elemental nitrogen into nitrogenous substances are:

 
 
 
 

141. Leaf spot of groundnut is caused by :

 
 
 
 

142. The source of litmus is :

 
 
 
 

143. The sori in Dryopteris are found on:

 
 
 
 

144. The specific genes found on the plasmids of E coli are:

 
 
 
 

145. Funaria is :

 
 
 
 

146. Which of the following plants does not belong to Embryophyta?

 
 
 
 

147. The similarity between cyanobacteria and bacteria:

 
 
 
 

148. Which condition is found in Cycas?

 
 
 
 

149. Black rust of wheat is caused by:

 
 
 
 

150. Some biologists have used the term Mycetozoa for:

 
 
 
 

151. System of classification presented by a Russian botanist A. Takhtajan is:

 
 
 
 

152. When a diseased plant is legally stopped from export, this is done under :

 
 
 
 

153. Cycas has two cotyledons but even then it is not classified as a dicot:

 
 
 
 

154. The chloroplast in Ulothrix is :

 
 
 
 

155. The fungi are usually:

 
 
 
 

156. ‘Pond silk’ or ‘Water silk’ is the common name of :

 
 
 
 

157. Which of the following causes smut disease in cultivated plants?

 
 
 
 

158. Which class of Protozoa includes all parasitic forms?

 
 
 
 

159. Usually bacteria do not require light for synthesis of food:

 
 
 
 

160. The disease apple scab is caused by:

 
 
 
 

161. Which of the following shows heterotrichous habit?

 
 
 
 

162. Which of the following is not a correct match?

 
 
 
 

163. To which country Antony van Leeuwenhoek belong?

 
 
 
 

164. Triple antigen injection or vaccine are for:

 
 
 
 

165. Chrysanthemum stunt disease and potato spindle tuber disease are caused by:

 
 
 
 

166. Number of capsomeres forming capsid of TMV is:

 
 
 
 

167. Desired type of Cycas can be grown by:

 
 
 
 

168. Chemosynthetic bacteria are:

 
 
 
 

169. Which of the following would appear as the pioneer organism on bare rocks :

 
 
 
 

170. The leaf of Cycas shows:

 
 
 
 

171. Fern plants are:

 
 
 
 

172. All protozoans possess:

 
 
 
 

173. If the sporangia in a sorus are in the same stage of development it is called:

 
 
 
 

174. Halophiles are the bacteria that require for growth:

 
 
 
 

175. In bryophytes and pteridophytes, transport male gametes requires:

 
 
 
 

176. The scientist who created the group Protista for both unicellular plants and animals, was:

 
 
 
 

177. . In Bryophytes and Pteridophytes, transport of male gametes requires: (NEET 2016)

 
 
 
 

178. In plants, the substances which accumulate around the site of infection are :

 
 
 
 

179. Leaves of pea show white powdery patches due to the growth of fungal mycelium with conidia and conidiophores. These are the symptoms of :

 
 
 
 

180. Fairy ring is the name given to:

 
 
 
 

181. If a disease appears on a large scale after a long interval it is:

 
 
 
 

182. Which of the following is a free-living anaerobic nitrogen-fixing bacteria?

 
 
 
 

183. When the seeds are borne on megasporophylls and are not enclosed in a fruit, the plant belongs to :

 
 
 
 

184. What is absent in Deuteromycetes?

 
 
 
 

185. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

186. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

187. When the gametophyte is not formed by spores but by any other part of sporophyte it is known as :

 
 
 
 

188. The zoospores of Ulothrix are :

 
 
 
 

189. In a diplontic life cycle:

 
 
 
 

190. Which of the following is a beneficial activity of microorganisms?

 
 
 
 

191. The ascus of yeast contains:

 
 
 
 

192. Indusium in Dryopteris is:

 
 
 
 

193. Photosynthetic protists belong to:

 
 
 
 

194. The reserve food in yeast is in the form of:

 
 
 
 

195. Which of the following is not a fungal disease?

 
 
 
 

196. An alga which is rich in proteins:

 
 
 
 

197. Heterosporous pteridophytes always form:

 
 
 
 

198. Placenta in fern is:

 
 
 
 

199. The genetic material of poxvirus is:

 
 
 
 

200. Among the algae kelps are :

 
 
 
 

201. The sporangia of Selaginella are attached:

 
 
 
 

202. Which of the following structures help in respiration of lichens?

 
 
 
 

203. One of the distinctive feature of Spirogyra is :

 
 
 
 

204. A disease is abnormal state that may result due to :

 
 
 
 

205. Red rot of sugarcane is caused by :

 
 
 
 

206. The zygospore in Rhizopus on germination forms:

 
 
 
 

207. Late blight of potato is caused by:

 
 
 
 

208. Ovary is absent in :

 
 
 
 

209. An Hfr bacterium is one that contains:

 
 
 
 

210. Which of the following is true for Selaginella?

 
 
 
 

211. For purposes of microbial control, the term sterilization implies:

 
 
 
 

212. Multicellular and jacketed sex organs are found in :

 
 
 
 

213. Retting is a process, by which bacteria bring about the:

 
 
 
 

214. The young leaves of Cycas have :

 
 
 
 

215. The five kingdom system of classification was proposed by:

 
 
 
 

216. The megasporophyll of Cycas is equivalent to which part of Angiosperm?

 
 
 
 

217. Yeast grows more rapidly in:

 
 
 
 

218. Virus and bacteriophage are made-up of:

 
 
 
 

219. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

220. The disease occurring more or less regularly from year to year in a particular locality is referred to as :

 
 
 
 

221. In bacterial photosynthesis, which functions as reductant of CO₂ is:

 
 
 
 

222. The common bacterium, which lives in the human intestine is:

 
 
 
 

223. In Cycas, the vascular bundle of a leaflet is :

 
 
 
 

224. The teeth of peristome of Funaria are :

 
 
 
 

225. Capsella bursa-pastoris exhibit a life cycle which is:

 
 
 
 

226. In Gymnocarpeae the fruiting body is :

 
 
 
 

227. Which part of Riccia bears nurse cells?

 
 
 
 

228. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

229. At least two billion years, nearly half the age of Earth, the only organisms that existed were:

 
 
 
 

230. Zygospores may not be produced in Rhizopus due to:

 
 
 
 

231. Adaxial outgrowth from the base of the leaf of Selaginella is:

 
 
 
 

232. The sporophyte of Riccia is represented by :

 
 
 
 

233. The chief function of the indusium of the fern is:

 
 
 
 

234. A branch of science that deals with nature, symptoms, development and control of plant diseases is called :

 
 
 
 

235. Which are non-seed-bearing vascular plants?

 
 
 
 

236. It is sometimes seen that conjugation between two hyphae of Rhizopus does not take place even in most favourable conditions because:

 
 
 
 

237. The roots of Cycas are :

 
 
 
 

238. The vascular bundles of Cycas stem are :

 
 
 
 

239. The fern plant is:

 
 
 
 

240. Mycelium is the name given to the plant body of:

 
 
 
 

241. Quarantine regulations are concerned with:

 
 
 
 

242. What are plasmids?

 
 
 
 

243. Which is not likely to be found on sea shore?

 
 
 
 

244. In which group would you place a plant that reproduces by spores, develops embryo but plant body remains undifferentiated into root, stem and leaves?

 
 
 
 

245. Dicot leaf-like reticulate venation occurs in leaves of:

 
 
 
 

246. Pythium debaryanum is the causative agent of:

 
 
 
 

247. Cap cells are found in the filament of:

 
 
 
 

248. The gametophyte produced by apospory is :

 
 
 
 

249. The pathogen that causes covered smut of Sorghum is :

 
 
 
 

250. The chromosomal number in:

 
 
 
 

251. On the basis of distribution of algal component in the thallus, lichens are classified as :

 
 
 
 

252. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

253. Pythium debaryanum is the causative agent of:

 
 
 
 

254. Banana bunchy top is caused by :

 
 
 
 

255. Tautonyms are illegitimate in:

 
 
 
 

256. Which disease is caused by the bacterium Treponema pallidum?

 
 
 
 

257. Wine turns sour because of:

 
 
 
 

258. When an infection is very wide in occurrence, it is called :

 
 
 
 

259. Which group of algae have an incipient nucleus?

 
 
 
 

260. Match column I with column II and select the correct option using the codes given below:

| Column I | Column II |
|——————|—————–|
| A Citric acid | (i) Trichoderma |
| B Cyclosporin A | (ii) Clostridium|
| C Statins | (iii) Aspergillus|
| D Butyric acid | (iv) Monascus |

Codes:

| | A | B | C | D |
|——|—|—|—|—|
| (a) | i | iv| ii| iii|
| (b) | iii| iv| i | ii|
| (c) | iii| i | ii| iv|
| (d) | iii| i | iv| ii|

Answer: (d) iii, i, iv, ii

Explanation: The correct matching is:
– A Citric acid – (iii) Aspergillus
– B Cyclosporin A – (i) Trichoderma
– C Statins – (iv) Monascus
– D Butyric acid – (ii) Clostridium

179 Which of the following sets of diseases is caused by bacteria?

 
 
 
 

261. Plant body is diploid and meiosis occurs in diploid gametangia at the time of formation of gametes in:

 
 
 
 

262. Viroids have:

 
 
 
 

263. A control measure prior to the appearance of a particular disease comes under :

 
 
 
 

264. Reproduction in Cycas takes place by :

 
 
 
 

265. Which of the following protein is associated with prion disease?

 
 
 
 

266. Synzoospore is produced in:

 
 
 
 

267. Who among the following discovered virus?

 
 
 
 

268. In Cycas microsporangia are borne on:

 
 
 
 

269. The cell wall of bacteria is made-up of:

 
 
 
 

270. Substances released by some bacteria to cause toxicity in host are:

 
 
 
 

271. Which is not the characteristic feature in Spirogyra life history?

 
 
 
 

272. Heterospory and ligulate leaves are a feature of:

 
 
 
 

273. The green upright sterile hair-like structures among the antheridia in moss are known as :

 
 
 
 

274. Bacteria differ from viruses in being sensitive to:

 
 
 
 

275. Which one of the following temperatures would most likely kill a mesophile?

 
 
 
 

276. The branch of Botany under which fungi are studied is known as:

 
 
 
 

277. Yeast is a source of:

 
 
 
 

278. Most of the algae along with other submerged plants usually float on water during the day time, while they sink at night, because :

 
 
 
 

279. Aflatoxin is produced by:

 
 
 
 

280. Members of the genus Streptococcus are responsible for cases of:

 
 
 
 

281. The coralloid roots are :

 
 
 
 

282. Leprosy is caused by:

 
 
 
 

283. Most common type of conjugation in Spirogyra is :

 
 
 
 

284. Body disorders due to harmful physiological changes are known as :

 
 
 
 

285. The heart-shaped prothallus of Dryopteris is always:

 
 
 
 

286. Sometimes a gamete of Rhizopus functions as zygospore. It is known as:

 
 
 
 

287. The sporophyte of Riccia is :

 
 
 
 

288. The tallest living gymnosperm tree in the world belongs to :

 
 
 
 

289. Soil fertility is lost by the activities of:

 
 
 
 

290. Which of the following are included in Tracheophyta?

 
 
 
 

291. Scientific name of Mango is Mangifera indica L. Here L represents:

 
 
 
 

292. Spermatophyta are characterized by producing:

 
 
 
 

293. The sexual reproductive organs in Rhizopus are:

 
 
 
 

294. The mycelium of Rhizopus is:

 
 
 
 

295. Ovules are not found enclosed in ovary in :

 
 
 
 

296. The male gametes of Pinus are :

 
 
 
 

297. Ex situ conservation of endangered wildlife flora and fauna is possible through:

 
 
 
 

298. Who discovered heterothallism in fungi?

 
 
 
 

299. The total number of families of Angiosperm in Hutchinson’s classification are:

 
 
 
 

300. All algae have:

 
 
 
 

301. Lichens reproduce by :

 
 
 
 

302. In moss, peristomial teeth are:

 
 
 
 

303. In Herpes virus DNA is:

 
 
 
 

304. Psilotum is:

 
 
 
 

305. Redness of red sea is due to :

 
 
 
 

306. Sometimes a ladder-like structure is exhibited in Spirogyra due to :

 
 
 
 

307. Little leaf disease of Brinjal is caused by:

 
 
 
 

308. Which are non-seed-bearing vascular plants?

 
 
 
 

309. Cycas is :

 
 
 
 

310. Spermatophyta are characterized by producing:

 
 
 
 

311. A part of pathogen that is transmitted to the host is termed as :

 
 
 
 

312. In young stage sporophyte of fern absorbs food from the prothallus through:

 
 
 
 

313. In Pteris, the sporophytic generation begins from and ends with the formation of spore mother cells:

 
 
 
 

314. The tree fern is:

 
 
 
 

315. The sporangium of fern contains nearly:

 
 
 
 

316. Absorptive nutrition is:

 
 
 
 

317. Fertility of the soil is increased by:

 
 
 
 

318. All but one group are included in tracheophyta; which group is this?

 
 
 
 

319. Binomial system of nomenclature means that every organism has:

 
 
 
 

320. Selaginella differs from Moss in having:

 
 
 
 

321. Which is not true for Escherichia coli?

 
 
 
 

322. All archaebacteria lack:

 
 
 
 

323. Which family of bacteria can decompose a wide variety of organic compounds, natural or man-made, including inert ones like hydrocarbons? This property has actually been used by scientists to reduce pollution such as that from petroleum spillage:

 
 
 
 

324. John Hutchinson, who was associated with Royal Botanical Garden, Kew, England, initially gave his system of classification in:

 
 
 
 

325. The basal-cell by which an alga is attached to its substratum is known as :

 
 
 
 

326. Botulinum toxin effects:

 
 
 
 

327. Sporophyte of fern is:

 
 
 
 

328. Propagating materials like seeds, tubers, grafts and bulbs can be kept free of pathogens by :

 
 
 
 

329. Bacteria which are found in marshy areas and among the flora of cattle rumen are called:

 
 
 
 

330. The most primitive vascular plants is:

 
 
 
 

331. In the sub genus Heterophyllum of genus Selaginella the leaves are present in:

 
 
 
 

332. The structure produced from germination of a microspore of Selaginella is:

 
 
 
 

333. Vascular tissue is found in :

 
 
 
 

334. Heterocysts are found in :

 
 
 
 

335. Pteridophytes are also known as :

 
 
 
 

336. In moss, conducting tissue is made up of

 
 
 
 

337. Water-net is the name of:

 
 
 
 

338. The science of study of bacteria is known as bacteriology. The name bacteria was first of all given by:

 
 
 
 

339. Nitrogen-fixing bacteria may be located:

 
 
 
 

340. Detailed study of bacteriophage was made by:

 
 
 
 

341. Lichens are pioneers of vegetation in a :

 
 
 
 

342. Which of the lichen live as a crust over soil, rocks and branches of trees?

 
 
 
 

343. Centric discoid form of diatom is:

 
 
 
 

344. All the following human diseases are caused by spirochetes except:

 
 
 
 

345.

 

346. Distinction between prokaryotes and eukaryotes is mainly based on:

 
 
 
 

347. Mostly type of zygospore in Ulothrix is:

 
 
 
 

348. The leaves of Funaria are :

 
 
 
 

349. In Funaria, calyptra is derived from :

 
 
 
 

350. Antibiotic has been extracted from :

 
 
 
 

351. Why is Cycas called a living fossil?

 
 
 
 

352. Fern and Cycas are similar in the presence of:

 
 
 
 

353. If all ponds and puddles are destroyed the organism likely to be destroyed is:

 
 
 
 

354. Reserve food in Euglena is:

 
 
 
 

355. The spores which are formed in the sporangium of Rhizopus are:

 
 
 
 

356. The tallest moss in the world is :

 
 
 
 

357. The fungi are mostly:

 
 
 
 

358. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

359. Funaria is :

 
 
 
 

360.

361. Shedding of pollen grains in Pinus takes place at :

 
 
 
 

362. The orders generally have the uniform endings:

 
 
 
 

363. Which of the following is necessary for the process of conjugation in bacteria?

 
 
 
 

364. Azolla growing in paddy fields helps in:

 
 
 
 

365. Cyathia is characterized by:

 
 
 
 

366. In which of the following, RNA is the genetic material?

 
 
 
 

367. Citrus canker is caused by:

 
 
 
 

368. In Selaginella, the microsporangia are:

 
 
 
 

369. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

370. In which of the following plants is the sporophyte a dominant phase in the life cycle?

 
 
 
 

371. Ethylene oxide is widely used to:

 
 
 
 

372. Amoeba is placed in the phylum Protozoa because of:

 
 
 
 

373. Who is known as ‘Father of Taxonomy’?

 
 
 
 

374. In angiosperms double fertilization represents:

 
 
 
 

375. In pteridophytes, meiosis occurs at the stage of:

 
 
 
 

376. Which of the following structures help in retaining moisture?

 
 
 
 

377. The plants which produce embryo but lack vascular tissue and seeds are placed in :

 
 
 
 

378. Plasmids are:

 
 
 
 

379. The chief enzyme found in the yeast cell is:

 
 
 
 

380. The leaves of Funaria are :

 
 
 
 

381. Master-slave relationship between fungi and algae in the lichens is called :

 
 
 
 

382. Parthenium hysterophorus is a native of South America but it grows luxuriantly in most of the area of India. In India, it is considered as:

 
 
 
 

383. An excessive enlargement of diseased organ because of increase in the number of cells is called:

 
 
 
 

384. The chief characteristic of bryophyta is that :

 
 
 
 

385. Sometimes the bacterial cell is enclosed in:

 
 
 
 

386. Red rot of sugarcane is caused by :

 
 
 
 

387. The penicillin family of antibiotics is used primarily against:

 
 
 
 

388. Megasporophylls of Pteridophyta are comparable to which structure of Angiosperms?

 
 
 
 

389. When a fungus is able to pass its complete life cycle on one host it is called:

 
 
 
 

390. Some bacteria cannot be killed easily because of:

 
 
 
 

391. In Funaria :

 
 
 
 

392. Vascular cryptogams is the term used for:

 
 
 
 

393. In dinoflagellates, the two flagella are:

 
 
 
 

394. The multinucleate and aseptate hypha of Rhizopus are known as:

 
 
 
 

395. Which of the following are absent in Mycoplasma?

 
 
 
 

396. The archegonia of Selaginella are differentiated by:

 
 
 
 

397. The smallest known agent of a plant disease is:

 
 
 
 

398. Male gametes in Dryopteris are:

 
 
 
 

399. In which of the following diploid stage is usually dominant?

 
 
 
 

400. Which of the following is sago palm?

 
 
 
 

401. Woody climbers are known as :

 
 
 
 

402. There is a class of phenolic compounds produced by the host plant in response to fungal infections :

 
 
 
 

403. Transfusion tissue is present in the leaflet of:

 
 
 
 

404. In which order of Gymnosperms only fossils are present?

 
 
 
 

405. What is streptomycin?

 
 
 
 

406. Bacteriophages have been used as:

 
 
 
 

407. Which is the nuclear material in bacteria?

 
 
 
 

408. Infective part of virus was discovered by:

 
 
 
 

409. Where does meiosis occur in yeast?

 
 
 
 

410. Fruits are not found in:

 
 
 
 

411. The sporangiophores in Rhizopus are:

 
 
 
 

412. The truncated cone of HIV consists of:

 
 
 
 

413. Standard size of a herbarium sheet is:

 
 
 
 

414. Genetically engineered bacteria have been successfully used in the commercial production of:

 
 
 
 

415. Formation of gametophyte-like structure from sporophyte without reduction division is called (i.e., without formation of spores):

 
 
 
 

416. Who discovered streptomycin?

 
 
 
 

417. Which group of plants have spores, vascular bundles but no flowers?

 
 
 
 

418. Isomorphic type alternation of generation is found in:

 
 
 
 

419. Roots are absent in :

 
 
 
 

420. Nonmotile, thin-walled spores of algae are called :

 
 
 
 

421. In which of the following, isogamy, anisogamy and oogamy all are found?

 
 
 
 

422. Which organisms are the oldest life forms?

 
 
 
 

423. Cycas revoluta is widely grown as :

 
 
 
 

424. What is the role of nitrifying bacteria?

 
 
 
 

425. Ovary is absent in:

 
 
 
 

426. The main characteristic that distinguishes a Spirogyra cell from a Ulothrix cell is :

 
 
 
 

427. Endemic plants are characterised by their:

 
 
 
 

428. An English surgeon believed that microorganisms of the air caused infection in the wound and to avoid the infection, he used carbolic acid and hence he became the father of modern antiseptic surgery. His name is:

 
 
 
 

429. Embryo formation is not known in :

 
 
 
 

430. NBG of Lucknow is now named as:

 
 
 
 

431. Which of the following organisms has characters of both animals and plants?

 
 
 
 

432. Fern prothallus is:

 
 
 
 

433. Select the wrong statement:

 
 
 
 

434. What are Cyanobacteria?

 
 
 
 

435. The photoreceptor found at the anterior end of Chlamydomonas is:

 
 
 
 

436. The seed known by the name of ‘chilgoza’ that is used as dry fruit belongs to :

 
 
 
 

437. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

438. Metulae are found in:

 
 
 
 

439. The spermatozoids of Cycas are :

 
 
 
 

440. Cocci types of bacteria are:

 
 
 
 

441. In Cycas which structure is equivalent to stamen?

 
 
 
 

442. Nitrifying bacteria play an important role by converting:

 
 
 
 

443. The estimated length of DNA molecule in E. coli is:

 
 
 
 

444. Atracheata term has been used by O. Swiald Tippo for:

 
 
 
 

445. The developing embryo in Selaginella derives its food from:

 
 
 
 

446. The most important property of yeast is:

 
 
 
 

447. Which is not found in bacteria?

 
 
 
 

448. Streptomycin is obtained from:

 
 
 
 

449. In bacterial chromosome, the nucleic acid polymers are:

 
 
 
 

450. Aflatoxin is produced as a product in :

 
 
 
 

451. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to:

 
 
 
 

452. Total parasites belong to:

 
 
 
 

453. In moss, sporophyte is formed on:

 
 
 
 

454. Which among the following is a shrub?

 
 
 
 

455. Mucilaginous canals in Cycas are found in :

 
 
 
 

456. Dryopteris prothallus is bisexual but the type of gametic union is generally by:

 
 
 
 

457. The plants with soft and delicate stems, about a meter tall are known as :

 
 
 
 

458. Funaria are commonly found :

 
 
 
 

459. Ulothrix produces :

 
 
 
 

460. Which among the following is known as Father of Indian phycology?

 
 
 
 

461. Vegetative reproduction in Cycas is by means of :

 
 
 
 

462. Chemosynthetic bacteria are:

 
 
 
 

463. Antibiotics cure the disease by:

 
 
 
 

464. Rhizopus belongs to:

 
 
 
 

465. Ovules are not found enclosed in ovary in :

 
 
 
 

466. Certain bacteria are able to thrive under extreme environmental conditions such as the absence of oxygen, high salt concentration, high temperature, or highly acidic environment What are these bacteria called?

 
 
 
 

467. RNA particle causing symptoms like that of a virus disease are known as:

 
 
 
 

468. Bivalved siliceous shell or frustule occur in:

 
 
 
 

469. Rhizopus, which is saprophytic by nature, is also known as:

 
 
 
 

470. Most of the algae are :

 
 
 
 

471. The rhizoids of Funaria are :

 
 
 
 

472. Mycoplasma is different from bacteria due to:

 
 
 
 

473. The development of Selaginella embryo is:

 
 
 
 

474. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

475. Which of the following statement is correct?

 
 
 
 

476. The chief characteristic of fern leaf is that they:

 
 
 
 

477. Substances obtained from microorganisms and used to inhibit the growth of other microorganisms are:

 
 
 
 

478. The lambda phase is a:

 
 
 
 

479. Penicillin is obtained from:

 
 
 
 

480. An organism that lacks plastids, even then it manufactures its own food material:

 
 
 
 

481. The protonema which is not formed from spores is known as :

 
 
 
 

482. Which part of the plant is not affected by Albugo?

 
 
 
 

483. Name the scientist who called viruses as “Contagium vivum fluidum”:

 
 
 
 

484. The capsid of TMV is made-up of nearly:

 
 
 
 

485. Which is a fungicide?

 
 
 
 

486. Iodine is obtained from :

 
 
 
 

487. . Tapetum develops in:

 
 
 
 

488. Pasteurization of milk involves heating for:

 
 
 
 

489. Milk is converted to curd by:

 
 
 
 

490. Lichens show :

 
 
 
 

491. Most primitive embryophytes are placed in:

 
 
 
 

492. Penicillin was discovered by:

 
 
 
 

493. Which of the following plants does not belong to Embryophyta?

 
 
 
 

494. Agar-agar, a common substance used in research is obtained from :

 
 
 
 

495. An infectious agent associated with certain mammalian degenerative disease that is composed solely of protein, is known as:

 
 
 
 

496. The stem and petiole are covered with numerous brownish scale-like structures which are called:

 
 
 
 

497. The virus responsible for AIDS is an example of a (an):

 
 
 
 

498. Spores of which plants have chloroplast:

 
 
 
 

499. Fruiting body of lichens is :

 
 
 
 

500. Most primitive group of vascular plants are:

 
 
 
 

501. Cell walls of Gram-positive bacteria contain:

 
 
 
 

502. The prothallus of fern is:

 
 
 
 

503. The smut mycelium which initiates the infection is usually :

 
 
 
 

504. The oldest book of botanical work which now exists was written by Theophrastus. Its name is:

 
 
 
 

505. Pollination drop is:

 
 
 
 

506. System of classification proposed by Bentham and Hooker is:

 
 
 
 

507. Which is a group of ancient photosynthetic prokaryotes which give oxygen during photosynthesis?

 
 
 
 

508. There are some dead and corky areas with definite margins on the stem, branches and fruits of lemon. This disease should be :

 
 
 
 

509. Of all organisms, the most adaptable and versatile are:

 
 
 
 

510. In Pteris, the archegonia are present:

 
 
 
 

511. Lichens form the first community in

 
 
 
 

512. The spores of Funaria on germination give rise to :

 
 
 
 

513. Cyanophage is a virus that attacks:

 
 
 
 

514. If the sporangia in a sorus are in different stages of development and are intermixed, this condition is called:

 
 
 
 

515. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

516. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

517. Bacteria are placed under:

 
 
 
 

518. The lichens growing on rocks are called :

 
 
 
 

519. The two conjugating gametangia of Rhizopus are:

 
 
 
 

520. The gametophyte of fern bears:

 
 
 
 

521. A characteristic spore of Agaricus, a mushroom is known as:

 
 
 
 

522. Which part of the plant is not affected by Albugo?

 
 
 
 

523. In between the sex organs of Funaria are found a number of hair-like structures which are known as :

 
 
 
 

524. In Funaria, the leaves are arranged on the axis:

 
 
 
 

525. Pasteur is famous for his:

 
 
 
 

526. Certain leafless non-green branches produced from Selaginella are:

 
 
 
 

527. The thread-like body of Nostoc filament without mucilage sheath is called :

 
 
 
 

528. The middle sterile part of capsule is called:

 
 
 
 

529. Gram stain is used to:

 
 
 
 

530. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a :

 
 
 
 

531. Genera Plantarum which appeared in three volumes from 1862-1883 was written by:

 
 
 
 

532. A substance (a low molecular weight protein) produced by host cells in response to viral infection, that protects other cells against further viral infection is:

 
 
 
 

533. A microbiologist found that some bacteria infected by phages had developed the ability to make a particular amino acid that they could not make before. This ability was probably a result of:

 
 
 
 

534. Each chloroplast in Spirogyra bears :

 
 
 
 

535. Biciliate antherozoids are found in which of the following?

 
 
 
 

536. Most of the lichens are composed of :

 
 
 
 

537. Sexual reproduction in Rhizopus is by:

 
 
 
 

538. Seeds are characteristically found in :

 
 
 
 

539. Which of the following is a heterosporous pteridophyte?

 
 
 
 

540. Pneumonia is caused by:

 
 
 
 

541. The gametophyte of fern is as:

 
 
 
 

542. Which is a redwood tree?

 
 
 
 

543. Bacteriophage consists of:

 
 
 
 

544. Bryophyta have a special character from other plants:

 
 
 
 

545. A special structure is born in between the microsporophyll and microsporangium of Selaginella. It is called:

 
 
 
 

546. In Pteris, the roots are:

 
 
 
 

547. The antheridia in Funaria are formed at the apex of the male shoot in :

 
 
 
 

548. Asexual reproductive bodies in some higher mycelial bacteria (eg, Actinomycetous forms) are:

 
 
 
 

549. Which of the following statements is not correct?

 
 
 
 

550. Which of the following have algal zone?

 
 
 
 

551. Which of the following is the most destructive enemies of mankind?

 
 
 
 

552. The mature ligule has a prominent basal portion called:

 
 
 
 

553. The sori of Dryopteris are covered by a thick multicellular covering known as:

 
 
 
 

554. Plant body is violettish-blue or blue-green in:

 
 
 
 

555. The DNA of E coli is:

 
 
 
 

556. Name the scientist who gave dual hypothesis for lichens?

 
 
 
 

557. The sex organs that develop amongst the rhizoids of fern prothallus are:

 
 
 
 

558. In binomial system most of the words are:

 
 
 
 

559. Choose the correct statement about Spirogyra:

 
 
 
 

560. Black rust of wheat is caused by:

 
 
 
 

561. In tracheophyta:

 
 
 
 

562. The disease symptom necrosis refers to :

 
 
 
 

563. Where are the antheridia and archegonia situated in moss?

 
 
 
 

564. For the archegonium of Pinus which statement is true?

 
 
 
 

565. Beijerinck isolated a free living nitrogen fixer bacterium, named:

 
 
 
 

566. John Hutchinson divided dicots into two divisions:

 
 
 
 

567. Pinus is:

 
 
 
 

568. The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include the:

 
 
 
 

569. Rhizophore of Selaginella is:

 
 
 
 

570. Under certain circumstances, a generating cell forms aplanospores from mucilaginous mass, which encloses numerous small but uninucleated bodies; this is known as :

 
 
 
 

571. Fern prothallus produces:

 
 
 
 

572. Who discovered cyanophages?

 
 
 
 

573. Fire resistant fibres and plastic are obtained from the alginates present in the cell wall of which algae?

 
 
 
 

574. Smallpox is caused by:

 
 
 
 

575. Majority of lichens are :

 
 
 
 

576. Mycoplasma was discovered by:

 
 
 
 

577. Those bacteria designated microaerophilic are distinguished by their ability to grow:

 
 
 
 

578. Pteridophytes as a group differ from Bryophytes and Thallophytes in having:

 
 
 
 

579. Spores formed at the tip of fungal hyphae are called:

 
 
 
 

580. Rhizopus and yeast are usually:

 
 
 
 

581. Which one of the following is a monocot?

 
 
 
 

582. In order to label the coat alone but not the nucleic acid the bacteriophage should be grown on E. coli cells previously cultured on a medium containing:

 
 
 
 

583. Which of the following is a parasitic algae?

 
 
 
 

584. Those bacteria believed to have lived during the earliest years of the Earth belong to the group:

 
 
 
 

585. Bacteria were first discovered by:

 
 
 
 

586. Which have the largest antherozoid?

 
 
 
 

587. A control measure prior to the appearance of a particular disease comes under:

 
 
 
 

588. Methanogens belong to:

 
 
 
 

589. Bacteria which are highly spiral in shape are called:

 
 
 
 

590. Clostridium can:

 
 
 
 

591. To which class Riccia belongs :

 
 
 
 

592. The decomposition of organic compounds in the presence of O2 and without the development of odoriferous substances is called:

 
 
 
 

593. Bacteria are considered to be plants because they:

 
 
 
 

594. Club moss and Peat moss belong to:

 
 
 
 

595. The number of neck canal cells in archegonium of Selaginella is:

 
 
 
 

596. The sori bearing leaves of fern are known as:

 
 
 
 

597. Spirogyra differs from moss protonema in having :

 
 
 
 

598. Sometimes different authors give different names to one and the same species. In such a situation:

 
 
 
 

599. Broad spectrum antibiotic is, which:

 
 
 
 

600. Gametophyte is the main plant body in :

 
 
 
 

601. Which of the following is not a viral disease?

 
 
 
 

602. Total number of families of angiosperms in Bentham and Hooker’s system classification is:

 
 
 
 

603. Cleavage polyembryony is found in :

 
 
 
 

604. Diaminopimelic acid and muramic acid are constituents of cell walls in:

 
 
 
 

605. Some diseases caused by bacteria are:

 
 
 
 

606. Simple polyembryony is found in :

 
 
 
 

607. Which functions as hydrogen donor in photosynthetic green sulfur bacteria?

 
 
 
 

608. The photosynthetic protists are:

 
 
 
 

609. Ectocarpus produces:

 
 
 
 

610. Protozoans are considered animals because these are:

 
 
 
 

611. The method of reproduction in bacterium, in which a virus participates is:

 
 
 
 

612. Nannandria are:

 
 
 
 

613. Which group of plants is called “Amphibians of Plant World”?

 
 
 
 

614. Yellow vein Mosaic of Bhindi Virus (Hibiscus Virus-I) is transmitted through:

 
 
 
 

615. Marsilea quadrifolia has only four leaflets. It is a:

 
 
 
 

616. In which of the following, RNA is double stranded:

 
 
 
 

617. Anoxygenic photosynthesis occurs in:

 
 
 
 

618. Meristele of fern is:

 
 
 
 

619. The seedless plants which possess vascular tissues are:

 
 
 
 

620. In Cycas:

 
 
 
 

621. India possesses wide biodiversity of flora and fauna. It is mainly due to its:

 
 
 
 

622. What is mycorrhiza?

 
 
 
 

623. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

624. Which of the following disease is caused by virus?

 
 
 
 

625. An excessive enlargement of diseased organ because of increase in the number of cells is called :

 
 
 
 

626. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

627. Viruses are commonly transmitted in plants through:

 
 
 
 

628. Mycoplasmas are not viruses in nature because:

 
 
 
 

629. Male gametophyte of Selaginella is found:

 
 
 
 

630. Black rust of wheat is caused by:

 
 
 
 

631. The phloem of vascular system of Cycas is :

 
 
 
 

632. To sterilize glassware and the culture medium, which equipment is used?

 
 
 
 

633. Usually, bacteria reproduce by:

 
 
 
 

634. Ovules are not found enclosed in ovary of:

 
 
 
 

635. Pollination in Cycas takes place by :

 
 
 
 

636. The antherozoids of Funaria are :

 
 
 
 

637. The life cycle of Saccharomyces ludwigii represents a typical type of life cycle:

 
 
 
 

638. The fungi used as food are:

 
 
 
 

639. Siphonogamy is found in:

 
 
 
 

640. Sexual reproduction of lichen is due to :

 
 
 
 

641. The Protists in which cell size decreases with each division are:

 
 
 
 

642. Mycoplasma are sensitive to:

 
 
 
 

643. The plants of Funaria grow :

 
 
 
 

644. Diatoms are not destroyed easily like other algae, because:

 
 
 
 

645. Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature:

 
 
 
 

646. Ancestors of Bryophyta were some aquatic plants is clear from the fact that :

 
 
 
 

647. Pasteurized milk is:

 
 
 
 

648. Interferon is a:

 
 
 
 

649. Yeast belongs to class:

 
 
 
 

650. The inability of a plant to resist the effects of a pathogen or any other damaging factors is known as :

 
 
 
 

651. Bacteria that are pathogenic in the body grow at temperatures:

 
 
 
 

652. Select the correct statement: (NEET 2016)

 
 
 
 

653. Saccharomyces is well known for:

 
 
 
 

654. Borrelia burgdorferi is noted for its ability to cause:

 
 
 
 

655. Green plants are classified as:

 
 
 
 

656. The gametophyte of moss has distinct phases :

 
 
 
 

657. Ginkgo biloba is a:

 
 
 
 

658. Which of the following have a prokaryotic cell?

 
 
 
 

659. The largest alga is:

 
 
 
 

660. A group of plants with similar characteristics of any rank is termed:

 
 
 
 

661. Nucleus in Spirogyra is suspended in the cell with the help of :

 
 
 
 

662. . In Oswald and Tippo’s system of classification, Pteropsida does not include:

 
 
 
 

663. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a:

 
 
 
 

664. Zoogametes are not found in:

 
 
 
 

665. The megasporangia of Selaginella can be identified due to their:

 
 
 
 

666. The order generally ends with:

 
 
 
 

667. Proembryo in Pinus is :

 
 
 
 

668. The spur of Pinus roxburghii has :

 
 
 
 

669. Bentham and Hooker placed gymnosperms:

 
 
 
 

670. Disease resistant plant varieties can be produced by :

 
 
 
 

671. Diphtheria is caused by:

 
 
 
 

672. Which of the following is correct regarding AIDS causative agent HIV? (NEET 2016)

 
 
 
 

673. Prions are pathogens that are thought to consist solely of:

 
 
 
 

674. The secondary xylem of the vascular bundles of Cycas is usually :

 
 
 
 

675. Smut of maize is caused by :

 
 
 
 

676. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

677. The bacterial decomposition of nitrogenous organic compounds in the absence of abundant oxygen usually results in the formation of substances of offensive odor, chiefly sulfur compounds. Such anaerobic decomposition is called:

 
 
 
 

678. Gymnosperms could also be called as:

 
 
 
 

679. Lichen show :

 
 
 
 

680. Cyanobacteria, unlike other types of bacteria that photosynthesize and:

 
 
 
 

681. The foliose lichens are attached to substratum by means of :

 
 
 
 

682. What is special feature of fern archegonia?

 
 
 
 

683. The Rhizopus gametes are formed in:

 
 
 
 

684. How is moss different from fern?

 
 
 
 

685. The first to isolate a plant virus was:

 
 
 
 

686. Small epidermal swellings due to infection are called :

 
 
 
 

687. Fungi have been separated from kingdom Protista on the basis of:

 
 
 
 

688. Which of the following are included in Tracheophyta?

 
 
 
 

689. The cortex cells of the young ‘stem’ or axis of Funaria are :

 
 
 
 

690. Ergot is obtained from :

 
 
 
 

691. Which lichen is called Reindeer moss?

 
 
 
 

692. The xylem of stele of fern rhizome is made up of:

 
 
 
 

693. The male cone of Cycas is made up of a group of :

 
 
 
 

694. A disease is an abnormal state that may result due to:

 
 
 
 

695. Meiosis in Ulothrix takes place:

 
 
 
 

696. The flagella of Chlamydomonas are:

 
 
 
 

697. Which of the following does not help in penetration of pathogen into the host?

 
 
 
 

698. Disease-resistant plant varieties can be produced by:

 
 
 
 

699. Most of the biological names have been derived from:

 
 
 
 

700. Bacteria are found everywhere, except:

 
 
 
 

701. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

702. Some of the species of Selaginella perennate by means of:

 
 
 
 

703. The bacteria, which are smallest in size are:

 
 
 
 

704. Linnaeus is credited with introducing:

 
 
 
 

705. Which of the following is wrong for fungi? (NEET 2016)

 
 
 
 

706. In moss, sporogenous tissue arises from:

 
 
 
 

707. A gill of Agaricus:

 
 
 
 

708. A structure in lichen that is similar to stomata in function is :

 
 
 
 

709. Which causes red tide?

 
 
 
 

710. The bacteria that can spoil under-processed canned food are:

 
 
 
 

711. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

712. If moss protonema is formed from capsule cells it will be :

 
 
 
 

713. Certain enzymes like reverse transcriptase, integrase and protease are found in:

 
 
 
 

714. The megasporangium of Selaginella is:

 
 
 
 

715. Which of the following can be said to be the precursor of seed-bearing plants?

 
 
 
 

716. Blue-green algae, which live as endozoic in protozoans are called :

 
 
 
 

717. Viruses have:

 
 
 
 

718. The largest known bacterium is:

 
 
 
 

719. Spirogyra represents the :

 
 
 
 

720. E coli is a:

 
 
 
 

721. Conifers are adapted to tolerate extreme environmental conditions because of: (NEET 2016)

 
 
 
 

722. Which is a gametophytic tissue?

 
 
 
 

723. Water bloom is generally caused by :

 
 
 
 

724. On germination, each zygospore of Spirogyra divides meiotically into four, but the number of filaments produced is :

 
 
 
 

725. Common phycobiont in a lichen is :

 
 
 
 

726.

727. The zygospores formed by the conjugation of gametangia are:

 
 
 
 

728. Lichens are the indicator of pollution :

 
 
 
 

729. Bacteria growing on synthetic medium are called:

 
 
 
 

730. Important feature of Spirogyra that distinguishes it from Ulothrix is :

 
 
 
 

731. Sporophyte of Funaria is :

 
 
 
 

732. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

733. Which of the following diseases are caused by Mycoplasma?

 
 
 
 

734. The most common method of vegetative reproduction in yeast is:

 
 
 
 

735. Which type of sexual reproduction is found in C. brauni?

 
 
 
 

736. The parasitic fungi take their nutrition from their host with the help of:

 
 
 
 

737. At the time of germination of zygospore in Spirogyra:

 
 
 
 

738. Most appropriate word for protozoans is:

 
 
 
 

739. Most primitive kind of flower is represented by:

 
 
 
 

740. The chloroplast of Chlamydomonas are:

 
 
 
 

741. Oswald Tippo’s classification was based on :

 
 
 
 

742. Which is the correct statement about Selaginella?

 
 
 
 

743. Acellular slime mold is/are:

 
 
 
 

744. Discovery of penicillin was based on:

 
 
 
 

745. The mode of nutrition of bacteria is usually:

 
 
 
 

746. Asexual reproductive body of Volvox is called:

 
 
 
 

747. Select the wrong statement:

 
 
 
 

748. Which group of plants have spores, vascular bundles and no seeds?

 
 
 
 

749. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

750. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to :

 
 
 
 

751. Spirogyra is commonly known by the name of ‘Pond scum’ or ‘Pond silk’ because :

 
 
 
 

752. Heterotrichous habit means :

 
 
 
 

753. For the disease of red stripe of sugarcane the bacterium responsible is:

 
 
 
 

754. The number of cotyledons in the embryo of Pinus are :

 
 
 
 

755. Rhizoids of Riccia are :

 
 
 
 

756. The stele of Dryopteris is a:

 
 
 
 

757. Which is absent from the xylem of Cycas?

 
 
 
 

758. Which one of the following statement is wrong?

 
 
 
 

759. Acetobacter is useful in:

 
 
 
 

760. The central part of Funaria axis is :

 
 
 
 

761. In Cycas the fertilization is:

 
 
 
 

762. Most primitive embryophytes are placed in :

 
 
 
 

763. Club moss is the common name of :

 
 
 
 

764. Winged seeds are found in :

 
 
 
 

765. Each cell of Volvox colony has a structure, similar to:

 
 
 
 

766. Zygote which divides by meiotic division (zygotic meiosis occurs in):

 
 
 
 

767. The columella of moss is the region of moss capsule :

 
 
 
 

768. The Rhizopus is:

 
 
 
 

769. Longest known virus is:

 
 
 
 

770. The smallest bacterium is:

 
 
 
 

771. Which plays an important role in the dispersal of spores in Funaria?

 
 
 
 

772. Typhoid in man is caused by:

 
 
 
 

773. The group algae possesses representatives belonging to kingdom:

 
 
 
 

774. When the F-factor enters a recipient cell during conjugation, the recipient cell:

 
 
 
 

775. Which one of the following belong to cryptogams only:

 
 
 
 

776. Oswald Tippo’s classification is:

 
 
 
 

777. Maximum diversity of life forms occurs in :

 
 
 
 

778. Chief constituents of bordeaux mixture are :

 
 
 
 

779. Which of the following applies to Selaginella?

 
 
 
 

780. Cycas is different from mango in :

 
 
 
 

781. Germ theory of disease was proposed by:

 
 
 
 

782. In which of the following plants would you place heterotrophs like slime moulds, rusts, mushrooms, etc.?

 
 
 
 

783. In prokaryotes, the mitochondria are absent. Even then Krebs’ cycle takes place. What is the site of Krebs’ cycle in bacteria?

 
 
 
 

784. Early blight of potato is caused by:

 
 
 
 

785. The microsporophyll of Selaginella are the forerunners of which structure of Angiosperms?

 
 
 
 

786. A diseased leaf shows some areas with dead tissue. This symptom is often referred to as :

 
 
 
 

787. Which is an exception to cell theory?

 
 
 
 

788. Vascular cryptogam is the term used for :

 
 
 
 

789. Cycas plant in appearance resembles :

 
 
 
 

790. Which of the following lichens is harmful?

 
 
 
 

791. Inverted omega-shaped arrangement of vascular bundles is found in :

 
 
 
 

792. Group of viruses, which attack members of Myxophyceae are termed as:

 
 
 
 

793. The archegonia in Selaginella develop on:

 
 
 
 

794. Which of the following causes smut disease in wheat?

 
 
 
 

795. Climbers are found in genus:

 
 
 
 

796. Which of the following is the kingdom of multicellular producers?

 
 
 
 

797. Fruits are not found in Cycas because:

 
 
 
 

798. Streptomyces falls under:

 
 
 
 

799. Funaria can be differentiated from Cycas :

 
 
 
 

800. The development of sporangium in Selaginella is:

 
 
 
 

801. Circular DNA is seen in:

 
 
 
 

802. Which of the following characteristics is associated with specialized transduction?

 
 
 
 

803. If a sporangium is derived from a single cell it is called:

 
 
 
 

804. The role of meiosis is for:

 
 
 
 

805. Yeast is different from Rhizopus and Penicillium in being:

 
 
 
 

806. Polystelic condition is found in:

 
 
 
 

807. Mixed cropping helps :

 
 
 
 

808. Which of the following is a monocot?

 
 
 
 

809. LSD is:

 
 
 
 

810. Most resistant spore in bacteria is:

 
 
 
 

811. Saccharomyces ludwigii ascus produces:

 
 
 
 

812. Which of the following does not contain chlorophyll?

 
 
 
 

813. Leptothrix is an example of iron bacteria Which of the following statements best fit the iron bacteria?

 
 
 
 

814. Which character in a Cycas leaflet indicates its xerophytic nature?

 
 
 
 

815. Enzymes are absent in:

 
 
 
 

816. Rice, pea, potato are :

 
 
 
 

817. One of the major components of the cell wall of most fungi is: (NEET 2016)

 
 
 
 

818. The life cycle of Funaria is not completed without water because of:

 
 
 
 

819. Seeds are characteristically found in:

 
 
 
 

820. Helotism word is used for the symbiosis between :

 
 
 
 

821. The site where the protein coat of virus is synthesized is:

 
 
 
 

822. Pinus gerardiana is :

 
 
 
 

823. Characters drawn from flowers are mainly used as basis for classification in seed plants because:

 
 
 
 

824. The structure formed by the bacterial genome is generally called as:

 
 
 
 

825. Agar-agar is obtained from:

 
 
 
 

826. The leafy fern plant represents the:

 
 
 
 

827. Among the currently used drugs for treating tuberculosis are:

 
 
 
 

828. All the following human diseases are due to members of the genus Clostridium except:

 
 
 
 

829. The stem of adult Cycas plant is covered with persistent leaf-bases which are :

 
 
 
 

830. Botulism is a:

 
 
 
 

831. Kuru, a human disease is caused by:

 
 
 
 

832. What is the reserve food material in chlorophycean algae?

 
 
 
 

833. Chemicals which are applied soon after the outset of infection, suppress the development of pathogen, thus curing the plant, are called :

 
 
 
 

834. Funaria is a Bryophyta because :

 
 
 
 

835. The megaspore of Selaginella on germination produces:

 
 
 
 

836. Which statement is wrong in regard to bacteria?

 
 
 
 

837. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called:

 
 
 
 

838. Lichens are indicators of :

 
 
 
 

839. All but one group are included in tracheophyta; which group is this :

 
 
 
 

840. The bacteria that cause tetanus can be killed only by prolonged heating at temperatures considerably above boiling. This suggests that tetanus bacteria:

 
 
 
 

841. Iodine is obtained from:

 
 
 
 

842. In the two kingdom system of classification, Euglena is included in:

 
 
 
 

843. Amoeba is a member of the phylum:

 
 
 
 

844. Diploxylic vascular bundles are found in:

 
 
 
 

845. The smallest unit of classification is:

 
 
 
 

846. Fruits are not found in :

 
 
 
 

847. Pollination in Pinus is :

 
 
 
 

848. The common name of Funaria, by which it is generally known, is :

 
 
 
 

849. Citrus canker is caused by :

 
 
 
 

850. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

851. Etiology includes the study of :

 
 
 
 

852. The capsule of fern sporangium bursts at a place called:

 
 
 
 

853. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

854. Late blight of potato is caused by :

 
 
 
 

855. In Gymnosperms endosperm is a:

 
 
 
 

856. How a fern differs from a moss?

 
 
 
 

857. The ferns are usually found:

 
 
 
 

858. Cycas is similar to a mustard plant :

 
 
 
 

859. Cycas is:

 
 
 
 

860.

861. AIDS (= Acquired Immune Deficiency Syndrome) is caused by:

 
 
 
 

862. Facultative parasite is:

 
 
 
 

863. Fern phloem lacks:

 
 
 
 

864. What is the position of neck canal cells in Pinus?