Quiz_Random

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

 
 
 
 

2. Helotism word is used for the symbiosis between :

 
 
 
 

3. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

5. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. The root nodules of leguminous plants contain:

 
 
 
 

10. The chloroplast in Ulothrix is :

 
 
 
 

11. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

13. Fairy ring is the name given to:

 
 
 
 

14. Cycas is similar to a mustard plant :

 
 
 
 

15. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Red rot of sugarcane is caused by :

 
 
 
 

22. Woody climbers are known as :

 
 
 
 

23. Enzymes are absent in:

 
 
 
 

24. In Cycas microsporangia are borne on:

 
 
 
 

25. The chloroplast of Chlamydomonas are:

 
 
 
 

26. Funaria can be differentiated from Cycas :

 
 
 
 

27. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

29. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

34. Which condition is found in Cycas?

 
 
 
 

35. Vascular cryptogams is the term used for:

 
 
 
 

36. In moss, sporogenous tissue arises from:

 
 
 
 

37. The Rhizopus is:

 
 
 
 

38. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

43. Water-borne bacterial diseases are:

 
 
 
 

44. Club moss is the common name of :

 
 
 
 

45. The antherozoids of Funaria are :

 
 
 
 

46. Psilotum is:

 
 
 
 

47. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

49. Which class of Protozoa includes all parasitic forms?

 
 
 
 

50. Bacteriophage consists of:

 
 
 
 

51. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

53. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Reproduction in Rhizopus is:

 
 
 
 

61. Spermatophyta are characterized by producing:

 
 
 
 

62. Heterosporous pteridophytes always form:

 
 
 
 

63. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. True sexuality is not found in:

 
 
 
 

68. Which is a gametophytic tissue?

 
 
 
 

69. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

71. The zoospores of Ulothrix are :

 
 
 
 

72. 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:

 
 
 
 

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

 
 
 
 

74. The teeth of peristome of Funaria are :

 
 
 
 

75. Agar-agar is obtained from:

 
 
 
 

76. The fungi are mostly:

 
 
 
 

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

 
 
 
 

78. The prothallus of fern is:

 
 
 
 

79. Cyanophage is a virus that attacks:

 
 
 
 

80. Protistan algae obtain their food as:

 
 
 
 

81. Mycoplasma contains:

 
 
 
 

82. The ferns are usually found:

 
 
 
 

83. What is streptomycin?

 
 
 
 

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

 
 
 
 

85. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

87. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

89. Which of the following are absent in Mycoplasma?

 
 
 
 

90. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

92. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

94. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Lichens are indicators of :

 
 
 
 

99. What are Cyanobacteria?

 
 
 
 

100. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Acetobacter is useful in:

 
 
 
 

105. Ovary is absent in :

 
 
 
 

106. Lichens form the first community in

 
 
 
 

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

 
 
 
 

108. Plasmids are:

 
 
 
 

109. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

111. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

113. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

115. 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?

 
 
 
 

116. Quarantine regulations are concerned with:

 
 
 
 

117. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

119. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

124. Leaf spot of groundnut is caused by :

 
 
 
 

125. Bryophyta have a special character from other plants:

 
 
 
 

126. Mycoplasma are:

 
 
 
 

127. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Rhizophore of Selaginella is:

 
 
 
 

133. Diploxylic vascular bundles are found in:

 
 
 
 

134. Fruiting body of lichens is :

 
 
 
 

135. Photosynthetic bacteria have:

 
 
 
 

136. Placenta in fern is:

 
 
 
 

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

 
 
 
 

138. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Embryo formation is not known in :

 
 
 
 

142. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

144. The first to isolate a plant virus was:

 
 
 
 

145. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

147. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Lichens show :

 
 
 
 

151. Which of the following is a monocot?

 
 
 
 

152. The fern plant is:

 
 
 
 

153. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. The stele of Dryopteris is a:

 
 
 
 

157. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Chief constituents of bordeaux mixture are :

 
 
 
 

165. Endemic plants are characterised by their:

 
 
 
 

166. Bacteria are placed under:

 
 
 
 

167. Indusium in Dryopteris is:

 
 
 
 

168. Most of the lichens are composed of :

 
 
 
 

169. Leprosy is caused by:

 
 
 
 

170. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Number of capsomeres forming capsid of TMV is:

 
 
 
 

174. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. The genetic material of poxvirus is:

 
 
 
 

179. Sporophyte of fern is:

 
 
 
 

180. Which of the following shows heterotrichous habit?

 
 
 
 

181. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

182. Which of the following statement is correct?

 
 
 
 

183. The nucleus of bacteria is:

 
 
 
 

184. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

186. Yeast belongs to class:

 
 
 
 

187. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

189. Halophiles are the bacteria that require for growth:

 
 
 
 

190. Coenogamete is found in:

 
 
 
 

191. Yeast is a source of:

 
 
 
 

192. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

194. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

196. Vegetative reproduction in Cycas is by means of :

 
 
 
 

197. Bacteria growing on synthetic medium are called:

 
 
 
 

198. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. In moss, peristomial teeth are:

 
 
 
 

202. Roots are absent in :

 
 
 
 

203. Fern prothallus produces:

 
 
 
 

204. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

206. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

208. The fungi that grow on wood are called:

 
 
 
 

209. The leafy fern plant represents the:

 
 
 
 

210. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

212. Water bloom is generally caused by :

 
 
 
 

213. Protozoans are considered animals because these are:

 
 
 
 

214. The leaves of Funaria are :

 
 
 
 

215. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

217. Gram stain is used to:

 
 
 
 

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

 
 
 
 

219. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

221. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Fruits are not found in :

 
 
 
 

225. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

226. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

228. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. The sporangium of fern contains nearly:

 
 
 
 

232. The development of sporangium in Selaginella is:

 
 
 
 

233. Sometimes the bacterial cell is enclosed in:

 
 
 
 

234. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

240. In moss, sporophyte is formed on:

 
 
 
 

241. TMV was isolated in crystalline form by:

 
 
 
 

242. 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?

 
 
 
 

243. Fruits are not found in Cycas because:

 
 
 
 

244. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. 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:

 
 
 
 

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

 
 
 
 

249. The fungi used as food are:

 
 
 
 

250. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. In dinoflagellates, the two flagella are:

 
 
 
 

254. What is special feature of fern archegonia?

 
 
 
 

255. Ginkgo biloba is a:

 
 
 
 

256. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

258. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

260. Ulothrix produces :

 
 
 
 

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

 
 
 
 

262. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Which of the following is true for Selaginella?

 
 
 
 

271. Pneumonia is caused by:

 
 
 
 

272. 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:

 
 
 
 

273. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

275. The term stele was given by:

 
 
 
 

276. Embryophyta includes :

 
 
 
 

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

 
 
 
 

278. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

280. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. Pinus gerardiana is :

 
 
 
 

286. Most primitive embryophytes are placed in:

 
 
 
 

287. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

289. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

291. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

293. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

295. Embryophyta includes:

 
 
 
 

296. The disease symptom necrosis refers to :

 
 
 
 

297. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

298. Sleeping sickness disease in man is caused by:

 
 
 
 

299. Parmelia belongs to :

 
 
 
 

300. Pollination drop is:

 
 
 
 

301. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

303. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

304. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. In Herpes virus DNA is:

 
 
 
 

308. Total parasites belong to:

 
 
 
 

309. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. Discovery of penicillin was based on:

 
 
 
 

313. The middle sterile part of capsule is called:

 
 
 
 

314. LSD is:

 
 
 
 

315. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

317. Spirogyra represents the :

 
 
 
 

318. Bivalved siliceous shell or frustule occur in:

 
 
 
 

319. The gametophyte of fern bears:

 
 
 
 

320. The source of litmus is :

 
 
 
 

321. Ethylene oxide is widely used to:

 
 
 
 

322. Azolla growing in paddy fields helps in:

 
 
 
 

323. Heterocysts are found in :

 
 
 
 

324. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

325. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

327. 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?

 
 
 
 

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

 
 
 
 

329. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

331. Spirogyra differs from moss protonema in having :

 
 
 
 

332. Pseudomycelium is found in:

 
 
 
 

333. The ascus of yeast contains:

 
 
 
 

334. Cellular slime mold is:

 
 
 
 

335. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Citrus canker is caused by :

 
 
 
 

349. Fruits are not found in:

 
 
 
 

350. Pinus microsporophyll bears:

 
 
 
 

351. Most primitive embryophytes are placed in :

 
 
 
 

352. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355.

356. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

358. Meristele of fern is:

 
 
 
 

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

 
 
 
 

360. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. A gill of Agaricus:

 
 
 
 

365. Mycoplasma are sensitive to:

 
 
 
 

366. Ovary is absent in:

 
 
 
 

367. Bacteria are found everywhere, except:

 
 
 
 

368. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

370. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

372. The order generally ends with:

 
 
 
 

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

 
 
 
 

374.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

380. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

382. Male gametophyte of Selaginella is found:

 
 
 
 

383. Red rot of sugarcane is caused by:

 
 
 
 

384. To which class Riccia belongs :

 
 
 
 

385. Facultative parasite is:

 
 
 
 

386. Cyathia is characterized by:

 
 
 
 

387. Among the algae kelps are :

 
 
 
 

388. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

390. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

398. Bacteria are considered to be plants because they:

 
 
 
 

399. Usually, bacteria reproduce by:

 
 
 
 

400. The archegonia in Selaginella develop on:

 
 
 
 

401. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. The spur of Pinus roxburghii has :

 
 
 
 

405. Mycoplasmas are not viruses in nature because:

 
 
 
 

406. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Heterotrichous habit means :

 
 
 
 

419. Virus and bacteriophage are made-up of:

 
 
 
 

420. All algae have:

 
 
 
 

421. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

425. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

427. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

429. Special feature of pollen grains of Pinus is :

 
 
 
 

430. Clostridium can:

 
 
 
 

431. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Ergot is obtained from :

 
 
 
 

435. The gametophyte produced by apospory is :

 
 
 
 

436. Heterospory and ligulate leaves are a feature of:

 
 
 
 

437. Wine turns sour because of:

 
 
 
 

438. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Milk is converted to curd by:

 
 
 
 

442. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

443. All protozoans possess:

 
 
 
 

444. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

446. Desired type of Cycas can be grown by:

 
 
 
 

447. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Diphtheria is caused by:

 
 
 
 

452. Multicellular and jacketed sex organs are found in :

 
 
 
 

453. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. The upper region of moss capsule is :

 
 
 
 

457. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. The chief characteristic of bryophyta is that :

 
 
 
 

461. Which fixes atmospheric nitrogen?

 
 
 
 

462. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

464. Which of the following is true for viruses?

 
 
 
 

465. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

467. Broad spectrum antibiotic is, which:

 
 
 
 

468. The gametophyte of moss has distinct phases :

 
 
 
 

469. Green plants are classified as :

 
 
 
 

470. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

472. Fern phloem lacks:

 
 
 
 

473. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

475. What are plasmids?

 
 
 
 

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

 
 
 
 

477. Pteridophytes are also known as :

 
 
 
 

478. Citrus canker is caused by:

 
 
 
 

479. 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:

 
 
 
 

480. Which is a fungicide?

 
 
 
 

481. Ovules are not found enclosed in ovary of:

 
 
 
 

482. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

484. E coli is a:

 
 
 
 

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

 
 
 
 

486. The chromosomal number in:

 
 
 
 

487. 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:

 
 
 
 

488. Circular DNA is seen in:

 
 
 
 

489. Most resistant spore in bacteria is:

 
 
 
 

490. Which bacteria convert nitrate into nitrogen?

 
 
 
 

491. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

493. Why is Cycas called a living fossil?

 
 
 
 

494. Which of the following are included in Tracheophyta?

 
 
 
 

495. Black rust of wheat is caused by:

 
 
 
 

496. The smallest bacterium is:

 
 
 
 

497. Who discovered heterothallism in fungi?

 
 
 
 

498. Rhizoids of Riccia are :

 
 
 
 

499. Viruses are considered to be:

 
 
 
 

500. Some bacteria cannot be killed easily because of:

 
 
 
 

501. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Some diseases caused by bacteria are:

 
 
 
 

505. Winged seeds are found in :

 
 
 
 

506. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Which is not found in bacteria?

 
 
 
 

515. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

517. Most of the algae are :

 
 
 
 

518. Pteridophyta are also called:

 
 
 
 

519. Penicillin was discovered by:

 
 
 
 

520. Ovules are not found enclosed in ovary in :

 
 
 
 

521. Which of the following is sago palm?

 
 
 
 

522. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

524. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

525. Which of the following have algal zone?

 
 
 
 

526. Mixed cropping helps :

 
 
 
 

527. Male gametes in Dryopteris are:

 
 
 
 

528. Vascular tissue is found in :

 
 
 
 

529. Cycas is:

 
 
 
 

530. In moss, reduction division occurs in :

 
 
 
 

531. The sporophyte of Riccia is represented by :

 
 
 
 

532. Little leaf disease of Brinjal is caused by:

 
 
 
 

533. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

535. Cryptogams include :

 
 
 
 

536. Ectocarpus produces:

 
 
 
 

537. Gymnosperms could also be called as:

 
 
 
 

538. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

539. Fern prothallus is:

 
 
 
 

540. The alga, Spirogyra are found in :

 
 
 
 

541. Photosynthetic protists belong to:

 
 
 
 

542. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

544. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

546. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Lichens reproduce by :

 
 
 
 

551. Mucilaginous canals in Cycas are found in :

 
 
 
 

552. Virion refers to:

 
 
 
 

553. Majority of lichens are :

 
 
 
 

554. Saccharomyces is used in:

 
 
 
 

555. Botulism is a:

 
 
 
 

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

 
 
 
 

557. Pythium debaryanum is the causative agent of:

 
 
 
 

558. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

564. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

566. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. The most important property of yeast is:

 
 
 
 

573. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

575. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Pasteur is famous for his:

 
 
 
 

579. Redness of red sea is due to :

 
 
 
 

580. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

582. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Each chloroplast in Spirogyra bears :

 
 
 
 

586. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592.

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

 
 
 
 

594. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

596. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

602. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Pinus is:

 
 
 
 

607. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

612. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

620. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

622. Saccharomyces is well known for:

 
 
 
 

623. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Which is a tautonym?

 
 
 
 

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

 
 
 
 

628. The lambda phase is a:

 
 
 
 

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

 
 
 
 

630. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

635. The two conjugating gametangia of Rhizopus are:

 
 
 
 

636. Lichens are the indicator of pollution :

 
 
 
 

637. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

639. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. The vascular bundles of Cycas stem are :

 
 
 
 

643. Lichens are ecologically important because :

 
 
 
 

644. Cycas plant in appearance resembles :

 
 
 
 

645. The disease apple scab is caused by:

 
 
 
 

646. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

648. In tracheophyta:

 
 
 
 

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

 
 
 
 

650. Funaria is a Bryophyta because :

 
 
 
 

651. The antibiotic is obtained from:

 
 
 
 

652. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. An Hfr bacterium is one that contains:

 
 
 
 

656. The role of meiosis is for:

 
 
 
 

657. Mostly type of zygospore in Ulothrix is:

 
 
 
 

658. Botulinum toxin effects:

 
 
 
 

659. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

661. Liverworts are included in :

 
 
 
 

662. The tree fern is:

 
 
 
 

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

 
 
 
 

664. Vascular cryptogam is the term used for :

 
 
 
 

665. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. The group algae possesses representatives belonging to kingdom:

 
 
 
 

673. Chemosynthetic bacteria are:

 
 
 
 

674. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

679. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

684. Ovules are not found enclosed in ovary in :

 
 
 
 

685. The phloem of vascular system of Cycas is :

 
 
 
 

686. Typhoid in man is caused by:

 
 
 
 

687. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

689. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Which of the following is a parasitic algae?

 
 
 
 

693. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

695. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

700. The microsporophylls on the cone of Cycas are :

 
 
 
 

701. In Selaginella, the microsporangia are:

 
 
 
 

702. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

704. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

706. Reproduction in Cycas takes place by :

 
 
 
 

707. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

712. Lichen show :

 
 
 
 

713. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

718. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. Yeast grows more rapidly in:

 
 
 
 

722. Which of the following is a heterosporous pteridophyte?

 
 
 
 

723. Pythium debaryanum is the causative agent of:

 
 
 
 

724. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

726. In Cycas the fertilization is:

 
 
 
 

727. Cycas is :

 
 
 
 

728. Black rust of wheat is caused by:

 
 
 
 

729. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

734. The sporangiophores in Rhizopus are:

 
 
 
 

735. Red rot of sugarcane is caused by :

 
 
 
 

736. The leaf of Cycas shows:

 
 
 
 

737. Triple antigen injection or vaccine are for:

 
 
 
 

738. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

740. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

750. Which is the correct statement about Selaginella?

 
 
 
 

751. Seeds are characteristically found in :

 
 
 
 

752. Gametophyte is the main plant body in :

 
 
 
 

753. Pollination in Pinus is :

 
 
 
 

754. Funaria is :

 
 
 
 

755. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

757. Funaria is :

 
 
 
 

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

 
 
 
 

759. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

761. One of the distinctive feature of Spirogyra is :

 
 
 
 

762. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

764. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Bacteriophages have been used as:

 
 
 
 

768. The sporophyte of Riccia is :

 
 
 
 

769. Metulae are found in:

 
 
 
 

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

 
 
 
 

771. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

773. Which statement is wrong in regard to bacteria?

 
 
 
 

774. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

778. The rhizoids of Funaria are :

 
 
 
 

779. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Interferon is a:

 
 
 
 

788. In Gymnosperms endosperm is a:

 
 
 
 

789. Azolla and Salvinia both are:

 
 
 
 

790. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

795. In Cycas which structure is equivalent to stamen?

 
 
 
 

796. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

798. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801.

802. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

803. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

807. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

809. Bentham and Hooker placed gymnosperms:

 
 
 
 

810. In angiosperms double fertilization represents:

 
 
 
 

811. Centric discoid form of diatom is:

 
 
 
 

812. Sexual reproduction of lichen is due to :

 
 
 
 

813. Mycoplasma is different from bacteria due to:

 
 
 
 

814. In moss, conducting tissue is made up of

 
 
 
 

815. How is moss different from fern?

 
 
 
 

816. In Funaria :

 
 
 
 

817. In moss, stomata are found:

 
 
 
 

818. Tautonyms are illegitimate in:

 
 
 
 

819. The gametophyte of fern is as:

 
 
 
 

820. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Viruses have:

 
 
 
 

824. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

826. Pasteurization of milk involves heating for:

 
 
 
 

827. Amoeba is a member of the phylum:

 
 
 
 

828. Acellular slime mold is/are:

 
 
 
 

829. Select the wrong statement:

 
 
 
 

830. In a bacteriophage, DNA is present in:

 
 
 
 

831. The fungi are usually:

 
 
 
 

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

 
 
 
 

833. The most primitive vascular plants is:

 
 
 
 

834. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

835. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

845. Common phycobiont in a lichen is :

 
 
 
 

846. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. The DNA of E coli is:

 
 
 
 

851. Club moss and Peat moss belong to:

 
 
 
 

852. Where does meiosis occur in yeast?

 
 
 
 

853. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

855. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. The male gametes of Pinus are :

 
 
 
 

860. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

862. Linnaeus is credited with introducing:

 
 
 
 

863. The smallest unit of classification is:

 
 
 
 

864. Economic importance of bacteria lies in their being: