Quiz_Random

1. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

3. Ovules are not found enclosed in ovary in :

 
 
 
 

4. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

6. Embryo formation is not known in :

 
 
 
 

7. Funaria can be differentiated from Cycas :

 
 
 
 

8. The megasporangium of Selaginella is:

 
 
 
 

9. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

14.

15. Which of the following shows heterotrichous habit?

 
 
 
 

16. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

18. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

20. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

22. In moss, conducting tissue is made up of

 
 
 
 

23. Select the wrong statement:

 
 
 
 

24. Who named prion?

 
 
 
 

25. Bacteriophages have been used as:

 
 
 
 

26. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

28. Fertility of the soil is increased by:

 
 
 
 

29. Cycas plant in appearance resembles :

 
 
 
 

30. Mycoplasma are sensitive to:

 
 
 
 

31. Which is the nuclear material in bacteria?

 
 
 
 

32. Heterospory and ligulate leaves are a feature of:

 
 
 
 

33. Which causes red tide?

 
 
 
 

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

 
 
 
 

35. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

37. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

39. Saccharomyces is used in:

 
 
 
 

40. Red rot of sugarcane is caused by :

 
 
 
 

41. TMV was isolated in crystalline form by:

 
 
 
 

42. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

44. Ectocarpus produces:

 
 
 
 

45. The upper region of moss capsule is :

 
 
 
 

46. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

51. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

58. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

60. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

62. Male gametophyte of Selaginella is found:

 
 
 
 

63. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

65. 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?

 
 
 
 

66. The plants of Funaria grow :

 
 
 
 

67. Protists which are diploid reproduce sexually by:

 
 
 
 

68. 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?

 
 
 
 

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

 
 
 
 

70. All protozoans possess:

 
 
 
 

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

 
 
 
 

72. Fruits are not found in :

 
 
 
 

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

 
 
 
 

74. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

80. In Funaria, calyptra is derived from :

 
 
 
 

81. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

83. Cyathia is characterized by:

 
 
 
 

84. Seeds are characteristically found in:

 
 
 
 

85. Rice, pea, potato are :

 
 
 
 

86. Ulothrix produces :

 
 
 
 

87. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. To which class Riccia belongs :

 
 
 
 

91. Nitrifying bacteria play an important role by converting:

 
 
 
 

92. In Cycas which structure is equivalent to stamen?

 
 
 
 

93. Mycoplasma is different from bacteria due to:

 
 
 
 

94. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

96. To which country Antony van Leeuwenhoek belong?

 
 
 
 

97. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Cryptogams include :

 
 
 
 

104. The most important property of yeast is:

 
 
 
 

105. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

107. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Black rust of wheat is caused by:

 
 
 
 

112. Which organisms are the oldest life forms?

 
 
 
 

113. The smallest bacterium is:

 
 
 
 

114. Which is an exception to cell theory?

 
 
 
 

115. The alga, Spirogyra are found in :

 
 
 
 

116. Mixed cropping helps :

 
 
 
 

117. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

123. The stele of Dryopteris is a:

 
 
 
 

124. Spirogyra differs from moss protonema in having :

 
 
 
 

125. Ovary is absent in :

 
 
 
 

126. Which is a tautonym?

 
 
 
 

127. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

129. Which of the following are included in Tracheophyta?

 
 
 
 

130. Diploxylic vascular bundles are found in:

 
 
 
 

131. Spores of which plants have chloroplast:

 
 
 
 

132. First animal pathogenic virus was discovered by:

 
 
 
 

133. Coenogamete is found in:

 
 
 
 

134. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

136. Ovary is absent in:

 
 
 
 

137. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

139. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. White rust of crucifers is caused by:

 
 
 
 

143. Virus and bacteriophage are made-up of:

 
 
 
 

144. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

146. The flagella of Chlamydomonas are:

 
 
 
 

147. Water-net is the name of:

 
 
 
 

148. Small epidermal swellings due to infection are called :

 
 
 
 

149. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

151. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Nitrogen-fixing bacteria may be located:

 
 
 
 

158. In Cycas:

 
 
 
 

159. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

160. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

162. Economic importance of bacteria lies in their being:

 
 
 
 

163. A gill of Agaricus:

 
 
 
 

164. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Helotism word is used for the symbiosis between :

 
 
 
 

173. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Vascular cryptogams is the term used for:

 
 
 
 

177. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

179. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Streptomycin is obtained from:

 
 
 
 

186. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

188. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

189. The leaves of Funaria are :

 
 
 
 

190. Chemosynthetic bacteria are:

 
 
 
 

191. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

193. Interferon is a:

 
 
 
 

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

 
 
 
 

195. Reserve food in Euglena is:

 
 
 
 

196. Fern phloem lacks:

 
 
 
 

197. Rhizopus and yeast are usually:

 
 
 
 

198. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

200. Fruiting body of lichens is :

 
 
 
 

201. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Cap cells are found in the filament of:

 
 
 
 

208. The gametophyte of fern is as:

 
 
 
 

209. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

211. Mycoplasma are:

 
 
 
 

212. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

214. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

215. The source of litmus is :

 
 
 
 

216. What is absent in Deuteromycetes?

 
 
 
 

217. The chloroplast in Ulothrix is :

 
 
 
 

218. Spermatophyta are characterized by producing:

 
 
 
 

219. The order generally ends with:

 
 
 
 

220. How is moss different from fern?

 
 
 
 

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

 
 
 
 

222. Wine turns sour because of:

 
 
 
 

223. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

225. Circular DNA is seen in:

 
 
 
 

226. The zoospores of Ulothrix are :

 
 
 
 

227. Cell walls of Gram-positive bacteria contain:

 
 
 
 

228. Enteric bacteria are those bacteria that live:

 
 
 
 

229. Absorptive nutrition is:

 
 
 
 

230. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

232. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

244. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

246. Methanogens belong to:

 
 
 
 

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

 
 
 
 

248. Pasteurization of milk involves heating for:

 
 
 
 

249. Viruses are considered to be:

 
 
 
 

250. 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?

 
 
 
 

251. Most primitive embryophytes are placed in:

 
 
 
 

252. Sporophyte of fern is:

 
 
 
 

253. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. The gametophyte of moss has distinct phases :

 
 
 
 

257. An alga which is rich in proteins:

 
 
 
 

258. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Nannandria are:

 
 
 
 

263. The sori in Dryopteris are found on:

 
 
 
 

264. Pinus is:

 
 
 
 

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

 
 
 
 

266. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The sporangiophores in Rhizopus are:

 
 
 
 

285. Clostridium can:

 
 
 
 

286. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

288. . Tapetum develops in:

 
 
 
 

289. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. The tree fern is:

 
 
 
 

295. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Aflatoxin is produced as a product in :

 
 
 
 

299. What is special feature of fern archegonia?

 
 
 
 

300. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. Woody climbers are known as :

 
 
 
 

309. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

310. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314.

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

 
 
 
 

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

 
 
 
 

317. Milk is converted to curd by:

 
 
 
 

318. Fern plants are:

 
 
 
 

319. Penicillin was discovered by:

 
 
 
 

320. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

322. Antibiotics cure the disease by:

 
 
 
 

323. The fungi that grow on wood are called:

 
 
 
 

324. The development of sporangium in Selaginella is:

 
 
 
 

325. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Pneumonia is caused by:

 
 
 
 

333. Photoautotrophic bacteria have:

 
 
 
 

334. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

336. Proembryo in Pinus is :

 
 
 
 

337. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

338. The tallest moss in the world is :

 
 
 
 

339. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Choose the correct statement about Spirogyra:

 
 
 
 

345. Lichens are pioneers of vegetation in a :

 
 
 
 

346. The chief characteristic of class Ascomycetes is:

 
 
 
 

347. Sexual reproduction of lichen is due to :

 
 
 
 

348. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. The ascus of yeast contains:

 
 
 
 

357. Yeast grows more rapidly in:

 
 
 
 

358. Saccharomyces is well known for:

 
 
 
 

359. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

361. Most primitive kind of flower is represented by:

 
 
 
 

362. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

366. In angiosperms double fertilization represents:

 
 
 
 

367. The gametophyte produced by apospory is :

 
 
 
 

368. Which of the following statement is correct?

 
 
 
 

369. The truncated cone of HIV consists of:

 
 
 
 

370. Most common type of conjugation in Spirogyra is :

 
 
 
 

371. Polystelic condition is found in:

 
 
 
 

372. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

374. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

376. Yeast is a source of:

 
 
 
 

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

 
 
 
 

378. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

379. Sleeping sickness disease in man is caused by:

 
 
 
 

380. Broad spectrum antibiotic is, which:

 
 
 
 

381. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

382. Which statement is wrong in regard to bacteria?

 
 
 
 

383. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Some biologists have used the term Mycetozoa for:

 
 
 
 

388. The sporangium of fern contains nearly:

 
 
 
 

389. Pinus microsporophyll bears:

 
 
 
 

390. Acellular slime mold is/are:

 
 
 
 

391. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

393. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Heterosporous pteridophytes always form:

 
 
 
 

401. Germ theory of disease was proposed by:

 
 
 
 

402. An Hfr bacterium is one that contains:

 
 
 
 

403. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

408. The lambda phase is a:

 
 
 
 

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

 
 
 
 

410. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

412. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

414. Lichens show :

 
 
 
 

415. Which is not found in bacteria?

 
 
 
 

416. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. What is a vector?

 
 
 
 

422. What is mycorrhiza?

 
 
 
 

423. Red rot of sugarcane is caused by :

 
 
 
 

424. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

426. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

428. Number of capsomeres forming capsid of TMV is:

 
 
 
 

429. The fungi used as food are:

 
 
 
 

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

 
 
 
 

431. Reproduction in Cycas takes place by :

 
 
 
 

432. Fern prothallus produces:

 
 
 
 

433. The gametophyte of fern bears:

 
 
 
 

434. E coli is a:

 
 
 
 

435. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

440. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Early blight of potato is caused by:

 
 
 
 

446. In tracheophyta:

 
 
 
 

447. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

449. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

451. 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:

 
 
 
 

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

 
 
 
 

453. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

458. Detailed study of bacteriophage was made by:

 
 
 
 

459. Ethylene oxide is widely used to:

 
 
 
 

460. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

462. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Seeds are characteristically found in :

 
 
 
 

467. Among the algae kelps are :

 
 
 
 

468. Desired type of Cycas can be grown by:

 
 
 
 

469. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

471. Multicellular and jacketed sex organs are found in :

 
 
 
 

472. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

474. 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:

 
 
 
 

475. The fungi are mostly:

 
 
 
 

476. Sexual reproduction in Rhizopus is by:

 
 
 
 

477. Red rot of sugarcane is caused by:

 
 
 
 

478. Which is a fungicide?

 
 
 
 

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

 
 
 
 

480. Special feature of pollen grains of Pinus is :

 
 
 
 

481. Ovules are not found enclosed in ovary in :

 
 
 
 

482. Parmelia belongs to :

 
 
 
 

483. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

485. The root nodules of leguminous plants contain:

 
 
 
 

486. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Smallpox is caused by:

 
 
 
 

494. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

496. Photosynthetic bacteria have:

 
 
 
 

497. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

499. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

501. How a fern differs from a moss?

 
 
 
 

502. 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:

 
 
 
 

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

 
 
 
 

504. Cycas is similar to a mustard plant :

 
 
 
 

505. The chromosomal number in:

 
 
 
 

506. The male gametes of Pinus are :

 
 
 
 

507. 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:

 
 
 
 

508. Virion refers to:

 
 
 
 

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

 
 
 
 

510. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. What are plasmids?

 
 
 
 

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

 
 
 
 

516. The sporangia of Selaginella are attached:

 
 
 
 

517. Who among the following discovered virus?

 
 
 
 

518. Majority of lichens are :

 
 
 
 

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

 
 
 
 

520. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

522. In moss, stomata are found:

 
 
 
 

523. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

525. Which of the following applies to Selaginella?

 
 
 
 

526. Indusium in Dryopteris is:

 
 
 
 

527. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. The group algae possesses representatives belonging to kingdom:

 
 
 
 

531. Club moss and Peat moss belong to:

 
 
 
 

532. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

534. The antherozoids of Funaria are :

 
 
 
 

535. Which of the following have algal zone?

 
 
 
 

536. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

538. Bacteria growing on synthetic medium are called:

 
 
 
 

539. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

541. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

542. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

544. Citrus canker is caused by :

 
 
 
 

545. Sometimes the bacterial cell is enclosed in:

 
 
 
 

546. Where does meiosis occur in yeast?

 
 
 
 

547. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

549. The first to isolate a plant virus was:

 
 
 
 

550. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

555. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Pollination in Pinus is :

 
 
 
 

561. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Lichens reproduce by :

 
 
 
 

565. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

567. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

569. Roots are absent in :

 
 
 
 

570. The young leaves of Cycas have :

 
 
 
 

571. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

572. Iodine is obtained from:

 
 
 
 

573. In moss, reduction division occurs in :

 
 
 
 

574. Metulae are found in:

 
 
 
 

575. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

577. Which of the following statements is not correct?

 
 
 
 

578. Who discovered streptomycin?

 
 
 
 

579. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

584. Longest known virus is:

 
 
 
 

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

 
 
 
 

586. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

588. Typhoid in man is caused by:

 
 
 
 

589. Acetobacter is useful in:

 
 
 
 

590. The largest alga is:

 
 
 
 

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

 
 
 
 

592. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Green plants are classified as:

 
 
 
 

604. The archegonia of Selaginella are differentiated by:

 
 
 
 

605. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Transfusion tissue is present in the leaflet of:

 
 
 
 

609. Most primitive group of vascular plants are:

 
 
 
 

610. Lichens form the first community in

 
 
 
 

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

 
 
 
 

612. Spermatophyta are characterized by producing:

 
 
 
 

613. 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:

 
 
 
 

614. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

616. Who discovered cyanophages?

 
 
 
 

617. Which of the following does not contain chlorophyll?

 
 
 
 

618. Which of the following are absent in Mycoplasma?

 
 
 
 

619. Which one of the following is a monocot?

 
 
 
 

620. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Cycas is different from mango in :

 
 
 
 

624. Fern prothallus is:

 
 
 
 

625. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

627. Bryophyta have a special character from other plants:

 
 
 
 

628. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

630. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

632. The photosynthetic protists are:

 
 
 
 

633. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Late blight of potato is caused by :

 
 
 
 

637. Anoxygenic photosynthesis occurs in:

 
 
 
 

638. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

639. Triple antigen injection or vaccine are for:

 
 
 
 

640. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

642. All archaebacteria lack:

 
 
 
 

643. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

644. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

649. Lichens are the indicator of pollution :

 
 
 
 

650. The mode of nutrition of bacteria is usually:

 
 
 
 

651. Fruits are not found in:

 
 
 
 

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

 
 
 
 

653. Rhizoids of Riccia are :

 
 
 
 

654. Pseudomycelium is found in:

 
 
 
 

655. Total parasites belong to:

 
 
 
 

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

 
 
 
 

657. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

658. The sexual reproductive organs in Rhizopus are:

 
 
 
 

659. The DNA of E coli is:

 
 
 
 

660. Lichen show :

 
 
 
 

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

 
 
 
 

662. Bacteria were first discovered by:

 
 
 
 

663. Some diseases caused by bacteria are:

 
 
 
 

664. In Funaria :

 
 
 
 

665. 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?

 
 
 
 

666. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

668. Selaginella differs from Moss in having:

 
 
 
 

669. Kuru, a human disease is caused by:

 
 
 
 

670. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

671. Disease resistant plant varieties can be produced by :

 
 
 
 

672. True sexuality is not found in:

 
 
 
 

673. Male gametes in Dryopteris are:

 
 
 
 

674. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

676. The leaf of Cycas shows:

 
 
 
 

677. Gram stain is used to:

 
 
 
 

678. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. In moss, peristomial teeth are:

 
 
 
 

684. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Most of the algae are :

 
 
 
 

689. Most of the lichens are composed of :

 
 
 
 

690. Ginkgo biloba is a:

 
 
 
 

691. The prothallus of fern is:

 
 
 
 

692. Which is a redwood tree?

 
 
 
 

693. Cycas is :

 
 
 
 

694. The leaves of Funaria are :

 
 
 
 

695. The Rhizopus is:

 
 
 
 

696. In dinoflagellates, the two flagella are:

 
 
 
 

697. Some bacteria cannot be killed easily because of:

 
 
 
 

698. The mycelium of Rhizopus is:

 
 
 
 

699. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Winged pollen grains are found in :

 
 
 
 

706. Tautonyms are illegitimate in:

 
 
 
 

707. Halophiles are the bacteria that require for growth:

 
 
 
 

708. Simple polyembryony is found in :

 
 
 
 

709. Centric discoid form of diatom is:

 
 
 
 

710. The fern plant is:

 
 
 
 

711. Saccharomyces ludwigii ascus produces:

 
 
 
 

712. Aflatoxin is produced by:

 
 
 
 

713. Plasmids are:

 
 
 
 

714. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

716. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Funaria are commonly found :

 
 
 
 

720. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. The zygospore in Rhizopus on germination forms:

 
 
 
 

724. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Maximum diversity of life forms occurs in :

 
 
 
 

729. Which of the following have a prokaryotic cell?

 
 
 
 

730. The rhizoids of Funaria are :

 
 
 
 

731. Germination of the seed of Pinus is :

 
 
 
 

732. Which is the correct statement about Selaginella?

 
 
 
 

733. Most appropriate word for protozoans is:

 
 
 
 

734. Redness of red sea is due to :

 
 
 
 

735. Smut of maize is caused by :

 
 
 
 

736. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Funaria is :

 
 
 
 

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

 
 
 
 

741. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

743. Vegetative reproduction in Cycas is by means of :

 
 
 
 

744. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Which of the following is a heterosporous pteridophyte?

 
 
 
 

749. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Mycoplasma was discovered by:

 
 
 
 

753. Bentham and Hooker placed gymnosperms:

 
 
 
 

754. Most resistant spore in bacteria is:

 
 
 
 

755. Which is not true for Escherichia coli?

 
 
 
 

756. Select the wrong statement:

 
 
 
 

757. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

759. Cleavage polyembryony is found in :

 
 
 
 

760. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

762. The sporophyte of Riccia is represented by :

 
 
 
 

763.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Generic name of mango is:

 
 
 
 

768. Little leaf disease of Brinjal is caused by:

 
 
 
 

769. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Meristele of fern is:

 
 
 
 

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

 
 
 
 

774. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

776. Bryophyta have been placed in cryptogams because:

 
 
 
 

777. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

779. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. In Pteris, the roots are:

 
 
 
 

783. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. Liverworts are included in :

 
 
 
 

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

 
 
 
 

788. Common phycobiont in a lichen is :

 
 
 
 

789. One of the distinctive feature of Spirogyra is :

 
 
 
 

790. The lichens growing on rocks are called :

 
 
 
 

791. Black rust of wheat is caused by:

 
 
 
 

792. In Cycas the fertilization is:

 
 
 
 

793. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. Azolla growing in paddy fields helps in:

 
 
 
 

803. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

809. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

811. LSD is:

 
 
 
 

812. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

817. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

819. Why is Cycas called a living fossil?

 
 
 
 

820. Water bloom is generally caused by :

 
 
 
 

821. 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:

 
 
 
 

822. Embryophyta includes :

 
 
 
 

823. Which part of Riccia bears nurse cells?

 
 
 
 

824. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

826. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

828. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

830. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Which of the following lichens is harmful?

 
 
 
 

834. Discovery of penicillin was based on:

 
 
 
 

835. Which of the following is true for Selaginella?

 
 
 
 

836. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

844. The roots of Cycas are :

 
 
 
 

845. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849.

850. Cocci types of bacteria are:

 
 
 
 

851. The similarity between cyanobacteria and bacteria:

 
 
 
 

852. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. All algae have:

 
 
 
 

856. Facultative parasite is:

 
 
 
 

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

 
 
 
 

858. Leprosy is caused by:

 
 
 
 

859. The ferns are usually found:

 
 
 
 

860. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Ovules are not found enclosed in ovary of:

 
 
 
 

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