Quiz_Random

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

 
 
 
 

2. The archegonia in Selaginella develop on:

 
 
 
 

3. Ovules are not found enclosed in ovary in :

 
 
 
 

4. Economic importance of bacteria lies in their being:

 
 
 
 

5. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

7. The ferns are usually found:

 
 
 
 

8. Aflatoxin is produced by:

 
 
 
 

9. Green plants are classified as :

 
 
 
 

10. The sporangiophores in Rhizopus are:

 
 
 
 

11. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

13. Which bacteria convert nitrate into nitrogen?

 
 
 
 

14. Streptomycin is obtained from:

 
 
 
 

15. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Indusium in Dryopteris is:

 
 
 
 

24. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Which of the following is a parasitic algae?

 
 
 
 

28. Water-borne bacterial diseases are:

 
 
 
 

29. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

33. To which class Riccia belongs :

 
 
 
 

34. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

36. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

38. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

40. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. The term stele was given by:

 
 
 
 

44. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Heterotrichous habit means :

 
 
 
 

48. Spirogyra differs from moss protonema in having :

 
 
 
 

49. In Funaria, calyptra is derived from :

 
 
 
 

50. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Nitrifying bacteria play an important role by converting:

 
 
 
 

54. The antherozoids of Funaria are :

 
 
 
 

55. Mycoplasma are:

 
 
 
 

56. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

58. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Discovery of penicillin was based on:

 
 
 
 

62. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Gametophyte is the main plant body in :

 
 
 
 

67. Pasteurized milk is:

 
 
 
 

68. The development of sporangium in Selaginella is:

 
 
 
 

69. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

74. The gametophyte produced by apospory is :

 
 
 
 

75. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

77. Interferon is a:

 
 
 
 

78. Heterosporous pteridophytes always form:

 
 
 
 

79. Bacteria are considered to be plants because they:

 
 
 
 

80. Male gametes in Dryopteris are:

 
 
 
 

81. Green plants are classified as:

 
 
 
 

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

 
 
 
 

83. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

85. Gram stain is used to:

 
 
 
 

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

 
 
 
 

87. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

89. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

91. Viroids have:

 
 
 
 

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

 
 
 
 

93. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

95. All archaebacteria lack:

 
 
 
 

96. Pythium debaryanum is the causative agent of:

 
 
 
 

97. Where does meiosis occur in yeast?

 
 
 
 

98. Which of the following is a heterosporous pteridophyte?

 
 
 
 

99. Sleeping sickness disease in man is caused by:

 
 
 
 

100. In Cycas the fertilization is:

 
 
 
 

101. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Black rust of wheat is caused by:

 
 
 
 

105. The source of litmus is :

 
 
 
 

106. Polystelic condition is found in:

 
 
 
 

107. The disease apple scab is caused by:

 
 
 
 

108. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Milk is converted to curd by:

 
 
 
 

123. Who discovered streptomycin?

 
 
 
 

124. Ethylene oxide is widely used to:

 
 
 
 

125. Saccharomyces is well known for:

 
 
 
 

126. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. The male gametes of Pinus are :

 
 
 
 

132. Synzoospore is produced in:

 
 
 
 

133. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

137. Asexual reproductive body of Volvox is called:

 
 
 
 

138. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. 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:

 
 
 
 

142. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

144. What is absent in Deuteromycetes?

 
 
 
 

145. Water-net is the name of:

 
 
 
 

146. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Multicellular and jacketed sex organs are found in :

 
 
 
 

151. Pinus gerardiana is :

 
 
 
 

152. Which group of algae have an incipient nucleus?

 
 
 
 

153. Detailed study of bacteriophage was made by:

 
 
 
 

154. Woody climbers are known as :

 
 
 
 

155. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

157. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. In tracheophyta:

 
 
 
 

161. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

162. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. The disease symptom necrosis refers to :

 
 
 
 

166. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

168. Embryophyta includes:

 
 
 
 

169. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

171. Desired type of Cycas can be grown by:

 
 
 
 

172. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Funaria are commonly found :

 
 
 
 

176. Cyanophage is a virus that attacks:

 
 
 
 

177. The nucleus of bacteria is:

 
 
 
 

178. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

180. What is special feature of fern archegonia?

 
 
 
 

181. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

183. Absorptive nutrition is:

 
 
 
 

184. Ovary is absent in:

 
 
 
 

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

 
 
 
 

186. Rice, pea, potato are :

 
 
 
 

187. In dinoflagellates, the two flagella are:

 
 
 
 

188. Protists which are diploid reproduce sexually by:

 
 
 
 

189. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Reproduction in Cycas takes place by :

 
 
 
 

193. Most primitive embryophytes are placed in :

 
 
 
 

194. Usually, bacteria reproduce by:

 
 
 
 

195. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

197. Chief constituents of bordeaux mixture are :

 
 
 
 

198. Viruses have:

 
 
 
 

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

 
 
 
 

200. Photosynthetic protists belong to:

 
 
 
 

201. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Fruits are not found in:

 
 
 
 

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

 
 
 
 

206. Mostly type of zygospore in Ulothrix is:

 
 
 
 

207. Which of the following have a prokaryotic cell?

 
 
 
 

208. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

210. Smut of maize is caused by :

 
 
 
 

211. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

213. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

215. Generic name of mango is:

 
 
 
 

216. The microsporophylls on the cone of Cycas are :

 
 
 
 

217. Clostridium can:

 
 
 
 

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

 
 
 
 

219. 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:

 
 
 
 

220. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. The smallest bacterium is:

 
 
 
 

224. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

226. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. In moss, sporophyte is formed on:

 
 
 
 

230. The teeth of peristome of Funaria are :

 
 
 
 

231. Most appropriate word for protozoans is:

 
 
 
 

232. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Acellular slime mold is/are:

 
 
 
 

237. Which lichen is called Reindeer moss?

 
 
 
 

238. Number of capsomeres forming capsid of TMV is:

 
 
 
 

239. The group algae possesses representatives belonging to kingdom:

 
 
 
 

240. Cycas is:

 
 
 
 

241. In moss, peristomial teeth are:

 
 
 
 

242. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

244. Total parasites belong to:

 
 
 
 

245. Which among the following is a shrub?

 
 
 
 

246. The similarity between cyanobacteria and bacteria:

 
 
 
 

247. Funaria is :

 
 
 
 

248. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

250. Protozoans are considered animals because these are:

 
 
 
 

251. Siphonogamy is found in:

 
 
 
 

252. Winged seeds are found in :

 
 
 
 

253. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

255. The zoospores of Ulothrix are :

 
 
 
 

256. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. 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?

 
 
 
 

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

 
 
 
 

264. Late blight of potato is caused by :

 
 
 
 

265. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. In Cycas which structure is equivalent to stamen?

 
 
 
 

269. In Pteris, the roots are:

 
 
 
 

270. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

272. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

277. Who named prion?

 
 
 
 

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

 
 
 
 

279. Nitrogen-fixing bacteria may be located:

 
 
 
 

280. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

281. Coenogamete is found in:

 
 
 
 

282. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

283. What is the role of nitrifying bacteria?

 
 
 
 

284. Pteridophytes are also known as :

 
 
 
 

285. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

286. Which one of the following is a monocot?

 
 
 
 

287. True sexuality is not found in:

 
 
 
 

288. E coli is a:

 
 
 
 

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

 
 
 
 

290. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Selaginella differs from Moss in having:

 
 
 
 

297. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

299. In a diplontic life cycle:

 
 
 
 

300. Bryophyta have a special character from other plants:

 
 
 
 

301. Majority of lichens are :

 
 
 
 

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

 
 
 
 

303. Which is absent from the xylem of Cycas?

 
 
 
 

304. First animal pathogenic virus was discovered by:

 
 
 
 

305. The middle sterile part of capsule is called:

 
 
 
 

306. Bacteria growing on synthetic medium are called:

 
 
 
 

307. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

309. 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:

 
 
 
 

310. Cap cells are found in the filament of:

 
 
 
 

311. Chemosynthetic bacteria are:

 
 
 
 

312. Most of the lichens are composed of :

 
 
 
 

313. Mycoplasma is different from bacteria due to:

 
 
 
 

314. Which of the following are absent in Mycoplasma?

 
 
 
 

315. The mode of nutrition of bacteria is usually:

 
 
 
 

316. The tallest moss in the world is :

 
 
 
 

317. The coralloid roots are :

 
 
 
 

318. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Yeast is a source of:

 
 
 
 

323. Smallpox is caused by:

 
 
 
 

324. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

326. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

331. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. The order generally ends with:

 
 
 
 

335. Lichens are indicators of :

 
 
 
 

336. Fertility of the soil is increased by:

 
 
 
 

337. Little leaf disease of Brinjal is caused by:

 
 
 
 

338. Tautonyms are illegitimate in:

 
 
 
 

339. Bacteria were first discovered by:

 
 
 
 

340. Streptomyces falls under:

 
 
 
 

341. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

342. How a fern differs from a moss?

 
 
 
 

343. Spores of which plants have chloroplast:

 
 
 
 

344. Linnaeus is credited with introducing:

 
 
 
 

345. Some diseases caused by bacteria are:

 
 
 
 

346. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

351. In Cycas:

 
 
 
 

352. Liverworts are included in :

 
 
 
 

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

 
 
 
 

354. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Plasmids are:

 
 
 
 

358. Leprosy is caused by:

 
 
 
 

359. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Methanogens belong to:

 
 
 
 

365. Ergot is obtained from :

 
 
 
 

366. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

368. Lichens show :

 
 
 
 

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

 
 
 
 

370. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. The flagella of Chlamydomonas are:

 
 
 
 

376. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

378. Leaf spot of groundnut is caused by :

 
 
 
 

379.

380. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Genetic material of TMV is:

 
 
 
 

384. Spirogyra represents the :

 
 
 
 

385. Penicillin is obtained from:

 
 
 
 

386. Isomorphic type alternation of generation is found in:

 
 
 
 

387. In a bacteriophage, DNA is present in:

 
 
 
 

388. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

390. White rust of crucifers is caused by:

 
 
 
 

391. Which of the following have algal zone?

 
 
 
 

392. Which is the nuclear material in bacteria?

 
 
 
 

393. Standard size of a herbarium sheet is:

 
 
 
 

394. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Pollination in Pinus is :

 
 
 
 

398. The roots of Cycas are :

 
 
 
 

399. Most common type of conjugation in Spirogyra is :

 
 
 
 

400. Lichens form the first community in

 
 
 
 

401. Some biologists have used the term Mycetozoa for:

 
 
 
 

402. Parmelia belongs to :

 
 
 
 

403. In binomial system most of the words are:

 
 
 
 

404. Cycas is different from mango in :

 
 
 
 

405. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

410. Red rot of sugarcane is caused by :

 
 
 
 

411.

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

 
 
 
 

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

 
 
 
 

414. Quarantine regulations are concerned with:

 
 
 
 

415. Small epidermal swellings due to infection are called :

 
 
 
 

416. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. The sporophyte of Riccia is :

 
 
 
 

433. Rhizopus and yeast are usually:

 
 
 
 

434. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

436. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

438. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

439. Downy mildew disease is caused by :

 
 
 
 

440. 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?

 
 
 
 

441. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

443. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

444. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

446. Red rot of sugarcane is caused by :

 
 
 
 

447. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

449. The fungi used as food are:

 
 
 
 

450. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

452. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Meristele of fern is:

 
 
 
 

457. The development of Selaginella embryo is:

 
 
 
 

458. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

460. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

462. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

464. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Which organisms are the oldest life forms?

 
 
 
 

472. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Funaria is :

 
 
 
 

476. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

478. All algae have:

 
 
 
 

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

 
 
 
 

480. Facultative parasite is:

 
 
 
 

481. Bacteria are placed under:

 
 
 
 

482. The ascus of yeast contains:

 
 
 
 

483. The chief characteristic of bryophyta is that :

 
 
 
 

484. Lichens are the indicator of pollution :

 
 
 
 

485. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

486. Broad spectrum antibiotic is, which:

 
 
 
 

487. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

488. Which is a tautonym?

 
 
 
 

489. An alga which is rich in proteins:

 
 
 
 

490. Placenta in fern is:

 
 
 
 

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

 
 
 
 

492. The lambda phase is a:

 
 
 
 

493. Ginkgo biloba is a:

 
 
 
 

494. 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:

 
 
 
 

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

 
 
 
 

496. Ovules are not found enclosed in ovary in :

 
 
 
 

497. Fern prothallus produces:

 
 
 
 

498. Cell walls of Gram-positive bacteria contain:

 
 
 
 

499. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

501. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

503. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

509. Embryo formation is not known in :

 
 
 
 

510. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Seeds are characteristically found in :

 
 
 
 

514. Most primitive kind of flower is represented by:

 
 
 
 

515. The sporangium of fern contains nearly:

 
 
 
 

516. Pinus is:

 
 
 
 

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

 
 
 
 

518. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

523. Most of the algae are :

 
 
 
 

524. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Which one of the following statement is wrong?

 
 
 
 

528. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Pasteurization of milk involves heating for:

 
 
 
 

535. What are plasmids?

 
 
 
 

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

 
 
 
 

537. Psilotum is:

 
 
 
 

538. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

540. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

542. In Pteris, the archegonia are present:

 
 
 
 

543. Which is an exception to cell theory?

 
 
 
 

544. The most primitive vascular plants is:

 
 
 
 

545. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Fairy ring is the name given to:

 
 
 
 

550. Which of the following lichens is harmful?

 
 
 
 

551. Agar-agar is obtained from:

 
 
 
 

552. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

554. Infective part of virus was discovered by:

 
 
 
 

555. An Hfr bacterium is one that contains:

 
 
 
 

556. The two conjugating gametangia of Rhizopus are:

 
 
 
 

557. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

559. Nannandria are:

 
 
 
 

560. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

562. Early blight of potato is caused by:

 
 
 
 

563. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

565. Which of the following does not contain chlorophyll?

 
 
 
 

566. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. In moss, stomata are found:

 
 
 
 

570. The gametophyte of fern bears:

 
 
 
 

571. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

573. Which is the correct statement about Selaginella?

 
 
 
 

574. Saccharomyces is used in:

 
 
 
 

575. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. All protozoans possess:

 
 
 
 

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

 
 
 
 

581. Mixed cropping helps :

 
 
 
 

582.

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

 
 
 
 

584. The megaspore of Selaginella on germination produces:

 
 
 
 

585. Virion refers to:

 
 
 
 

586. Protistan algae obtain their food as:

 
 
 
 

587. The smallest unit of classification is:

 
 
 
 

588. Cryptogams include :

 
 
 
 

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

 
 
 
 

590. Mucilaginous canals in Cycas are found in :

 
 
 
 

591. Gymnosperms could also be called as:

 
 
 
 

592. How is moss different from fern?

 
 
 
 

593. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

595. Fern prothallus is:

 
 
 
 

596. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

598. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Who discovered cyanophages?

 
 
 
 

605. The tree fern is:

 
 
 
 

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

 
 
 
 

607. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

614. Botulinum toxin effects:

 
 
 
 

615. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

617. Which condition is found in Cycas?

 
 
 
 

618. What is a vector?

 
 
 
 

619. In Funaria :

 
 
 
 

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

 
 
 
 

621. . Tapetum develops in:

 
 
 
 

622. Soil fertility is lost by the activities of:

 
 
 
 

623. The orders generally have the uniform endings:

 
 
 
 

624. The phloem of vascular system of Cycas is :

 
 
 
 

625. Cycas is :

 
 
 
 

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

 
 
 
 

627. Which causes red tide?

 
 
 
 

628. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

630. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Aflatoxin is produced as a product in :

 
 
 
 

642. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

647. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

649. Typhoid in man is caused by:

 
 
 
 

650. Lichen show :

 
 
 
 

651.

 

652. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

654. Reserve food in Euglena is:

 
 
 
 

655. The role of meiosis is for:

 
 
 
 

656. 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?

 
 
 
 

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

 
 
 
 

658. The sexual reproductive organs in Rhizopus are:

 
 
 
 

659. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Which part of Riccia bears nurse cells?

 
 
 
 

663. What is mycorrhiza?

 
 
 
 

664. The leafy fern plant represents the:

 
 
 
 

665. The seedless plants which possess vascular tissues are:

 
 
 
 

666. Pythium debaryanum is the causative agent of:

 
 
 
 

667. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. The largest alga is:

 
 
 
 

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

 
 
 
 

675. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

677. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

682. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

687. Pneumonia is caused by:

 
 
 
 

688. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Sporophyte of Funaria is :

 
 
 
 

693. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

695. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Roots are absent in :

 
 
 
 

699. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. The chromosomal number in:

 
 
 
 

703. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

705. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

707. Photosynthetic bacteria have:

 
 
 
 

708. Which of the following statements is not correct?

 
 
 
 

709. Longest known virus is:

 
 
 
 

710. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. The spur of Pinus roxburghii has :

 
 
 
 

715. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

717. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

719. Mycoplasma contains:

 
 
 
 

720. TMV was isolated in crystalline form by:

 
 
 
 

721. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Maximum diversity of life forms occurs in :

 
 
 
 

726. The Rhizopus is:

 
 
 
 

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

 
 
 
 

728. Facultative saprophyte is:

 
 
 
 

729. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

734. In Selaginella, the microsporangia are:

 
 
 
 

735. Black rust of wheat is caused by:

 
 
 
 

736. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Most resistant spore in bacteria is:

 
 
 
 

740. Among the algae kelps are :

 
 
 
 

741. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

746. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. The first to isolate a plant virus was:

 
 
 
 

750. Select the wrong statement:

 
 
 
 

751. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

756. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

761. Which fixes atmospheric nitrogen?

 
 
 
 

762. Which of the following shows heterotrichous habit?

 
 
 
 

763. Which of the following is sago palm?

 
 
 
 

764. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. The fungi are usually:

 
 
 
 

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

 
 
 
 

769. Fruits are not found in :

 
 
 
 

770. The spermatozoids of Cycas are :

 
 
 
 

771. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

773. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

775. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

777. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

779. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

781. Which is a fungicide?

 
 
 
 

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

 
 
 
 

783. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

785. Ectocarpus produces:

 
 
 
 

786. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

788. The fungi are mostly:

 
 
 
 

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

 
 
 
 

790. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

792. Which class of Protozoa includes all parasitic forms?

 
 
 
 

793. Cocci types of bacteria are:

 
 
 
 

794. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Which is not found in bacteria?

 
 
 
 

798. The lichens growing on rocks are called :

 
 
 
 

799. The chief characteristic of class Ascomycetes is:

 
 
 
 

800. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

802. Water bloom is generally caused by :

 
 
 
 

803. 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:

 
 
 
 

804. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

809. Who discovered heterothallism in fungi?

 
 
 
 

810. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

812. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

814. To which country Antony van Leeuwenhoek belong?

 
 
 
 

815. Virus and bacteriophage are made-up of:

 
 
 
 

816. Azolla and Salvinia both are:

 
 
 
 

817. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

819. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

821. Which of the following are included in Tracheophyta?

 
 
 
 

822. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

824. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

826. What is streptomycin?

 
 
 
 

827. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Sexual reproduction of lichen is due to :

 
 
 
 

831. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

832. LSD is:

 
 
 
 

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

 
 
 
 

834. Which have the largest antherozoid?

 
 
 
 

835. Select the wrong statement:

 
 
 
 

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

 
 
 
 

837. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Metulae are found in:

 
 
 
 

841. The alga, Spirogyra are found in :

 
 
 
 

842. Ovary is absent in :

 
 
 
 

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

 
 
 
 

844. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

849. Mycoplasmas are not viruses in nature because:

 
 
 
 

850. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

852. The sporophyte of Riccia is represented by :

 
 
 
 

853. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Which of the following are included in Tracheophyta?

 
 
 
 

858. Special feature of pollen grains of Pinus is :

 
 
 
 

859. Banana bunchy top is caused by :

 
 
 
 

860. Viruses are commonly transmitted in plants through:

 
 
 
 

861. The fern plant is:

 
 
 
 

862. John Hutchinson divided dicots into two divisions:

 
 
 
 

863. Most primitive embryophytes are placed in:

 
 
 
 

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