Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

5. Embryophyta includes:

 
 
 
 

6. The phloem of vascular system of Cycas is :

 
 
 
 

7. Rhizophore of Selaginella is:

 
 
 
 

8. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Lichens form the first community in

 
 
 
 

12. Enzymes are absent in:

 
 
 
 

13. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

14. Early blight of potato is caused by:

 
 
 
 

15. The disease symptom necrosis refers to :

 
 
 
 

16. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

18. Pneumonia is caused by:

 
 
 
 

19. To which country Antony van Leeuwenhoek belong?

 
 
 
 

20.

 

21. The Rhizopus gametes are formed in:

 
 
 
 

22. The DNA of E coli is:

 
 
 
 

23. Bivalved siliceous shell or frustule occur in:

 
 
 
 

24. In Funaria :

 
 
 
 

25. The megasporangium of Selaginella is:

 
 
 
 

26. An alga which is rich in proteins:

 
 
 
 

27. The lambda phase is a:

 
 
 
 

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

 
 
 
 

29. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

30. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Funaria is :

 
 
 
 

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

 
 
 
 

36. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

38. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

40. Embryo formation is not known in :

 
 
 
 

41. The orders generally have the uniform endings:

 
 
 
 

42. Ethylene oxide is widely used to:

 
 
 
 

43. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

44. Black rust of wheat is caused by:

 
 
 
 

45. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

46. Economic importance of bacteria lies in their being:

 
 
 
 

47. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

49. Rhizoids of Riccia are :

 
 
 
 

50. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

52. Plasmids are:

 
 
 
 

53. Multicellular and jacketed sex organs are found in :

 
 
 
 

54. Ovary is absent in :

 
 
 
 

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

 
 
 
 

56. Leprosy is caused by:

 
 
 
 

57. 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?

 
 
 
 

58. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

63. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

65. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

67. Most of the lichens are composed of :

 
 
 
 

68. The sori in Dryopteris are found on:

 
 
 
 

69. Roots are absent in :

 
 
 
 

70. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

72. The source of litmus is :

 
 
 
 

73. Sporophyte of Funaria is :

 
 
 
 

74. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Lichens are ecologically important because :

 
 
 
 

78. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

79. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

84. Most resistant spore in bacteria is:

 
 
 
 

85. Botulism is a:

 
 
 
 

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

 
 
 
 

87. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Chemosynthetic bacteria are:

 
 
 
 

92. In a diplontic life cycle:

 
 
 
 

93. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

95. Which of the following does not contain chlorophyll?

 
 
 
 

96.

97. Citrus canker is caused by:

 
 
 
 

98. Cryptogams include :

 
 
 
 

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

 
 
 
 

100. Heterocysts are found in :

 
 
 
 

101. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

103. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

105. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

107.

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

 
 
 
 

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

 
 
 
 

110. Viruses are commonly transmitted in plants through:

 
 
 
 

111. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. In Pteris, the archegonia are present:

 
 
 
 

115. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. The plants of Funaria grow :

 
 
 
 

122. Vascular tissue is found in :

 
 
 
 

123. Mycoplasma contains:

 
 
 
 

124. 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:

 
 
 
 

125. Sexual reproduction in Rhizopus is by:

 
 
 
 

126. 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?

 
 
 
 

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

 
 
 
 

128. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

138. The fungi used as food are:

 
 
 
 

139. Mostly type of zygospore in Ulothrix is:

 
 
 
 

140. Majority of lichens are :

 
 
 
 

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

 
 
 
 

142. Cap cells are found in the filament of:

 
 
 
 

143. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

145. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

146. Facultative parasite is:

 
 
 
 

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

 
 
 
 

148. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

150. Water-borne bacterial diseases are:

 
 
 
 

151. In Funaria, calyptra is derived from :

 
 
 
 

152. An Hfr bacterium is one that contains:

 
 
 
 

153. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Cycas revoluta is widely grown as :

 
 
 
 

157. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

159. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

163. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

164. Cycas plant in appearance resembles :

 
 
 
 

165. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

167. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Which of the following is sago palm?

 
 
 
 

174. Bacteriophage consists of:

 
 
 
 

175. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Aflatoxin is produced as a product in :

 
 
 
 

180. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. 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?

 
 
 
 

185. 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:

 
 
 
 

186. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Fern prothallus is:

 
 
 
 

192. Bacteriophages have been used as:

 
 
 
 

193. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

195. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

197. In a bacteriophage, DNA is present in:

 
 
 
 

198. Viroids have:

 
 
 
 

199. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

201. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The two conjugating gametangia of Rhizopus are:

 
 
 
 

208. Virus and bacteriophage are made-up of:

 
 
 
 

209. Azolla growing in paddy fields helps in:

 
 
 
 

210. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

212. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

214. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

216. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. In Cycas which structure is equivalent to stamen?

 
 
 
 

224. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

226. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

228. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

230. Clostridium can:

 
 
 
 

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

 
 
 
 

232. Water bloom is generally caused by :

 
 
 
 

233. Fruits are not found in :

 
 
 
 

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

 
 
 
 

235. Centric discoid form of diatom is:

 
 
 
 

236. The fern plant is:

 
 
 
 

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

 
 
 
 

238.

239. Longest known virus is:

 
 
 
 

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

 
 
 
 

241. Usually, bacteria reproduce by:

 
 
 
 

242. Broad spectrum antibiotic is, which:

 
 
 
 

243. Fruits are not found in Cycas because:

 
 
 
 

244. The antibiotic is obtained from:

 
 
 
 

245. Red rot of sugarcane is caused by :

 
 
 
 

246. Cocci types of bacteria are:

 
 
 
 

247. Pseudomycelium is found in:

 
 
 
 

248. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Lichens are pioneers of vegetation in a :

 
 
 
 

253. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Vegetative reproduction in Cycas is by means of :

 
 
 
 

257. The development of sporangium in Selaginella is:

 
 
 
 

258. Fruits are not found in:

 
 
 
 

259. Which is the nuclear material in bacteria?

 
 
 
 

260. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

267. Placenta in fern is:

 
 
 
 

268. In moss, stomata are found:

 
 
 
 

269. Which is an exception to cell theory?

 
 
 
 

270. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

273. Lichens reproduce by :

 
 
 
 

274. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

275. Bentham and Hooker placed gymnosperms:

 
 
 
 

276. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

278. The ferns are usually found:

 
 
 
 

279. Methanogens belong to:

 
 
 
 

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

 
 
 
 

281. The fungi are usually:

 
 
 
 

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

 
 
 
 

283. Which of the following are absent in Mycoplasma?

 
 
 
 

284. The sporophyte of Riccia is :

 
 
 
 

285. Kuru, a human disease is caused by:

 
 
 
 

286. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

288. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

290. Some biologists have used the term Mycetozoa for:

 
 
 
 

291. What are plasmids?

 
 
 
 

292. Metulae are found in:

 
 
 
 

293. How is moss different from fern?

 
 
 
 

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

 
 
 
 

295. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

297. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

299. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

301. In binomial system most of the words are:

 
 
 
 

302. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. In moss, conducting tissue is made up of

 
 
 
 

312. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. The term stele was given by:

 
 
 
 

316. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

326. Viruses have:

 
 
 
 

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

 
 
 
 

328. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

330. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

335. Fertility of the soil is increased by:

 
 
 
 

336. The first to isolate a plant virus was:

 
 
 
 

337. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

339. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

341. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

343. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

345. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

346. Which is a redwood tree?

 
 
 
 

347. The zygospore in Rhizopus on germination forms:

 
 
 
 

348. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

350. Pythium debaryanum is the causative agent of:

 
 
 
 

351. Pinus microsporophyll bears:

 
 
 
 

352. Lichens show :

 
 
 
 

353. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Male gametophyte of Selaginella is found:

 
 
 
 

357. Mycoplasma was discovered by:

 
 
 
 

358. Fern phloem lacks:

 
 
 
 

359. Fruiting body of lichens is :

 
 
 
 

360. The most primitive vascular plants is:

 
 
 
 

361. In dinoflagellates, the two flagella are:

 
 
 
 

362. Where does meiosis occur in yeast?

 
 
 
 

363. Total parasites belong to:

 
 
 
 

364. Reproduction in Rhizopus is:

 
 
 
 

365. Meristele of fern is:

 
 
 
 

366. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

367. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

368. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

370. The flagella of Chlamydomonas are:

 
 
 
 

371. Pasteurized milk is:

 
 
 
 

372. Who discovered heterothallism in fungi?

 
 
 
 

373. The gametophyte of fern is as:

 
 
 
 

374. Rice, pea, potato are :

 
 
 
 

375. Bacteria are found everywhere, except:

 
 
 
 

376. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. The genetic material of poxvirus is:

 
 
 
 

384. What is special feature of fern archegonia?

 
 
 
 

385. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

389. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Cyanophage is a virus that attacks:

 
 
 
 

393. Which is an edible fungus?

 
 
 
 

394. Which of the following have algal zone?

 
 
 
 

395. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Which have the largest antherozoid?

 
 
 
 

399. Select the wrong statement:

 
 
 
 

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

 
 
 
 

401. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Siphonogamy is found in:

 
 
 
 

406. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

408. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

414. Diploxylic vascular bundles are found in:

 
 
 
 

415. Cycas is:

 
 
 
 

416. Liverworts are included in :

 
 
 
 

417. Spirogyra represents the :

 
 
 
 

418. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

420. Which is a fungicide?

 
 
 
 

421. Mixed cropping helps :

 
 
 
 

422. Ovary is absent in:

 
 
 
 

423. The tree fern is:

 
 
 
 

424. Triple antigen injection or vaccine are for:

 
 
 
 

425. To which class Riccia belongs :

 
 
 
 

426. Who among the following discovered virus?

 
 
 
 

427. The leaves of Funaria are :

 
 
 
 

428. Which of the following statement is correct?

 
 
 
 

429. Special feature of pollen grains of Pinus is :

 
 
 
 

430. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

432. Rhizopus and yeast are usually:

 
 
 
 

433. Bacteria are placed under:

 
 
 
 

434. Enteric bacteria are those bacteria that live:

 
 
 
 

435. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

437. Woody climbers are known as :

 
 
 
 

438. Ovules are not found enclosed in ovary of:

 
 
 
 

439. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

441. Spermatophyta are characterized by producing:

 
 
 
 

442. Protozoans are considered animals because these are:

 
 
 
 

443. Black rust of wheat is caused by:

 
 
 
 

444. Which of the following is a heterosporous pteridophyte?

 
 
 
 

445. Which lichen is called Reindeer moss?

 
 
 
 

446. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

448. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

450. Cycas is different from mango in :

 
 
 
 

451. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

453. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

455. . Tapetum develops in:

 
 
 
 

456. The Rhizopus is:

 
 
 
 

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

 
 
 
 

458. Discovery of penicillin was based on:

 
 
 
 

459. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. The largest alga is:

 
 
 
 

471. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

473. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

475. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

488. The gametophyte produced by apospory is :

 
 
 
 

489. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

494. 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:

 
 
 
 

495. The largest known bacterium is:

 
 
 
 

496. Which organisms are the oldest life forms?

 
 
 
 

497. Cleavage polyembryony is found in :

 
 
 
 

498. Ulothrix produces :

 
 
 
 

499. Cell walls of Gram-positive bacteria contain:

 
 
 
 

500. The chromosomal number in:

 
 
 
 

501. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

503. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

505. Nannandria are:

 
 
 
 

506. Which of the following have a prokaryotic cell?

 
 
 
 

507. Diphtheria is caused by:

 
 
 
 

508. Funaria is :

 
 
 
 

509. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

511. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Asexual reproductive body of Volvox is called:

 
 
 
 

516. Most common type of conjugation in Spirogyra is :

 
 
 
 

517. What is the role of nitrifying bacteria?

 
 
 
 

518. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

520. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

522. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

524. The lichens growing on rocks are called :

 
 
 
 

525. Coenogamete is found in:

 
 
 
 

526. The upper region of moss capsule is :

 
 
 
 

527. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Heterospory is the production of:

 
 
 
 

535. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

537. Bryophyta have been placed in cryptogams because:

 
 
 
 

538. Interferon is a:

 
 
 
 

539. Nitrifying bacteria play an important role by converting:

 
 
 
 

540. Fern plants are:

 
 
 
 

541. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

543. Genetic material of TMV is:

 
 
 
 

544. Which group of algae have an incipient nucleus?

 
 
 
 

545. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

547. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

549. Which of the following is a monocot?

 
 
 
 

550. The smallest bacterium is:

 
 
 
 

551. Iodine is obtained from:

 
 
 
 

552. Ergot of rye is caused by:

 
 
 
 

553. LSD is:

 
 
 
 

554. First animal pathogenic virus was discovered by:

 
 
 
 

555. In angiosperms double fertilization represents:

 
 
 
 

556. Funaria is a Bryophyta because :

 
 
 
 

557. What is mycorrhiza?

 
 
 
 

558. The chief characteristic of class Ascomycetes is:

 
 
 
 

559. The prothallus of fern is:

 
 
 
 

560. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

562. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. 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:

 
 
 
 

566. Proembryo in Pinus is :

 
 
 
 

567. The chloroplast in Ulothrix is :

 
 
 
 

568. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Zoogametes are not found in:

 
 
 
 

580. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

582. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

584. Funaria can be differentiated from Cycas :

 
 
 
 

585. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

587. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

592. A gill of Agaricus:

 
 
 
 

593. Most primitive group of vascular plants are:

 
 
 
 

594. Pinus gerardiana is :

 
 
 
 

595. Lichens are the indicator of pollution :

 
 
 
 

596. Acellular slime mold is/are:

 
 
 
 

597. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

599. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Citrus canker is caused by :

 
 
 
 

604. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. How a fern differs from a moss?

 
 
 
 

610. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

612. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

614. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

616. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

622. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Which among the following is a shrub?

 
 
 
 

627. The sporangia of Selaginella are attached:

 
 
 
 

628. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Nitrogen-fixing bacteria may be located:

 
 
 
 

632. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Typhoid in man is caused by:

 
 
 
 

640. All protozoans possess:

 
 
 
 

641. The role of meiosis is for:

 
 
 
 

642. The teeth of peristome of Funaria are :

 
 
 
 

643. Which is a tautonym?

 
 
 
 

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

 
 
 
 

645. The roots of Cycas are :

 
 
 
 

646. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Linnaeus is credited with introducing:

 
 
 
 

650. Saccharomyces is well known for:

 
 
 
 

651. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

652. Helotism word is used for the symbiosis between :

 
 
 
 

653. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. Select the wrong statement:

 
 
 
 

657. 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:

 
 
 
 

658. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

660. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

662. 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:

 
 
 
 

663. Circular DNA is seen in:

 
 
 
 

664. Embryophyta includes :

 
 
 
 

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

 
 
 
 

666. Spores of which plants have chloroplast:

 
 
 
 

667. Spermatophyta are characterized by producing:

 
 
 
 

668. Oswald Tippo’s classification was based on :

 
 
 
 

669. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

671. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

673. Most of the algae are :

 
 
 
 

674. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. The mode of nutrition of bacteria is usually:

 
 
 
 

680. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

682. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

684. One of the distinctive feature of Spirogyra is :

 
 
 
 

685. The photosynthetic protists are:

 
 
 
 

686. Saccharomyces ludwigii ascus produces:

 
 
 
 

687. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

689. Heterosporous pteridophytes always form:

 
 
 
 

690. Red rot of sugarcane is caused by:

 
 
 
 

691. Bacteria growing on synthetic medium are called:

 
 
 
 

692. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

694. Bacteria are considered to be plants because they:

 
 
 
 

695. The leaves of Funaria are :

 
 
 
 

696. The archegonia in Selaginella develop on:

 
 
 
 

697. Which of the following are included in Tracheophyta?

 
 
 
 

698. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Spirogyra differs from moss protonema in having :

 
 
 
 

702. Psilotum is:

 
 
 
 

703. Green plants are classified as:

 
 
 
 

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

 
 
 
 

705. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

707. Sporophyte of fern is:

 
 
 
 

708. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

710. The sexual reproductive organs in Rhizopus are:

 
 
 
 

711. Smut of maize is caused by :

 
 
 
 

712. Select the correct statement: (NEET 2016)

 
 
 
 

713. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

715. Redness of red sea is due to :

 
 
 
 

716. The fungi are mostly:

 
 
 
 

717. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

723. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. In Gymnosperms endosperm is a:

 
 
 
 

727. Why is Cycas called a living fossil?

 
 
 
 

728. Ovules are not found enclosed in ovary in :

 
 
 
 

729. Generic name of mango is:

 
 
 
 

730. Virion refers to:

 
 
 
 

731. The seedless plants which possess vascular tissues are:

 
 
 
 

732. Sometimes the bacterial cell is enclosed in:

 
 
 
 

733. Pteridophytes are also known as :

 
 
 
 

734. The sporangiophores in Rhizopus are:

 
 
 
 

735. Which of the following are included in Tracheophyta?

 
 
 
 

736. Maximum diversity of life forms occurs in :

 
 
 
 

737. Pythium debaryanum is the causative agent of:

 
 
 
 

738. The young leaves of Cycas have :

 
 
 
 

739. Reproduction in Cycas takes place by :

 
 
 
 

740. The ascus of yeast contains:

 
 
 
 

741. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

743. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

752. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

754. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

756. The sporophyte of Riccia is represented by :

 
 
 
 

757. Lichen show :

 
 
 
 

758. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

760. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

762. Bryophyta have a special character from other plants:

 
 
 
 

763. Which one of the following is a monocot?

 
 
 
 

764. In moss, reduction division occurs in :

 
 
 
 

765. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. The sporangium of fern contains nearly:

 
 
 
 

769. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Yeast is a source of:

 
 
 
 

775. Which is not true for Escherichia coli?

 
 
 
 

776. Streptomyces falls under:

 
 
 
 

777. NBG of Lucknow is now named as:

 
 
 
 

778. Fern prothallus produces:

 
 
 
 

779. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. In moss, sporophyte is formed on:

 
 
 
 

790. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

792. Who discovered cyanophages?

 
 
 
 

793. Oswald Tippo’s classification is:

 
 
 
 

794. TMV was isolated in crystalline form by:

 
 
 
 

795. In Cycas:

 
 
 
 

796. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

798. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

800. Bacteria differ from viruses in being sensitive to:

 
 
 
 

801. Pasteurization of milk involves heating for:

 
 
 
 

802. Gram stain is used to:

 
 
 
 

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

 
 
 
 

804. The vascular bundles of Cycas stem are :

 
 
 
 

805. E coli is a:

 
 
 
 

806. Amoeba is a member of the phylum:

 
 
 
 

807. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

812. Photoautotrophic bacteria have:

 
 
 
 

813. 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:

 
 
 
 

814. Soil fertility is lost by the activities of:

 
 
 
 

815. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

817. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

819. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

821. The order generally ends with:

 
 
 
 

822. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Late blight of potato is caused by:

 
 
 
 

827. Antibiotics cure the disease by:

 
 
 
 

828. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

830. In tracheophyta:

 
 
 
 

831. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Quarantine regulations are concerned with:

 
 
 
 

835. Pinus is:

 
 
 
 

836. The male gametes of Pinus are :

 
 
 
 

837. What is a vector?

 
 
 
 

838. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

839. Yeast belongs to class:

 
 
 
 

840. Cycas is :

 
 
 
 

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

 
 
 
 

842. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Vascular cryptogam is the term used for :

 
 
 
 

848. Heterotrichous habit means :

 
 
 
 

849. Gymnosperms could also be called as:

 
 
 
 

850. Which causes red tide?

 
 
 
 

851. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

862. Polystelic condition is found in:

 
 
 
 

863. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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