Quiz_Random

1. The male gametes of Pinus are :

 
 
 
 

2. Who discovered cyanophages?

 
 
 
 

3. Lichens form the first community in

 
 
 
 

4. Transfusion tissue is present in the leaflet of:

 
 
 
 

5. Synzoospore is produced in:

 
 
 
 

6. Infective part of virus was discovered by:

 
 
 
 

7. Antibiotics cure the disease by:

 
 
 
 

8. Amoeba is a member of the phylum:

 
 
 
 

9. Protozoans are considered animals because these are:

 
 
 
 

10. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

11. Pseudomycelium is found in:

 
 
 
 

12. Red rot of sugarcane is caused by :

 
 
 
 

13. Which statement is wrong in regard to bacteria?

 
 
 
 

14. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

16.

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

 
 
 
 

18. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

20. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

22. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. The chromosomal number in:

 
 
 
 

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

 
 
 
 

27. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

29. Vascular cryptogams is the term used for:

 
 
 
 

30. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. The lambda phase is a:

 
 
 
 

34. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

36. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

38. Polystelic condition is found in:

 
 
 
 

39. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

41. Which among the following is a shrub?

 
 
 
 

42. How is moss different from fern?

 
 
 
 

43. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Ovules are not found enclosed in ovary in :

 
 
 
 

52. All algae have:

 
 
 
 

53. Photoautotrophic bacteria have:

 
 
 
 

54. Seeds are characteristically found in :

 
 
 
 

55. Spores of which plants have chloroplast:

 
 
 
 

56. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

58. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

60. The most important property of yeast is:

 
 
 
 

61. Reproduction in Rhizopus is:

 
 
 
 

62. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. TMV was isolated in crystalline form by:

 
 
 
 

68. The largest known bacterium is:

 
 
 
 

69. Leprosy is caused by:

 
 
 
 

70. The antibiotic is obtained from:

 
 
 
 

71. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. The sporophyte of Riccia is :

 
 
 
 

76. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Which is not found in bacteria?

 
 
 
 

83. In Herpes virus DNA is:

 
 
 
 

84. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Chief constituents of bordeaux mixture are :

 
 
 
 

88. Vegetative reproduction in Cycas is by means of :

 
 
 
 

89. All protozoans possess:

 
 
 
 

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

 
 
 
 

91. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

93. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

95. Which condition is found in Cycas?

 
 
 
 

96. Water bloom is generally caused by :

 
 
 
 

97. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

99. The flagella of Chlamydomonas are:

 
 
 
 

100. Which is a fungicide?

 
 
 
 

101. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Fern prothallus is:

 
 
 
 

108. Etiology includes the study of :

 
 
 
 

109. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. The truncated cone of HIV consists of:

 
 
 
 

130. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

132. The chloroplast of Chlamydomonas are:

 
 
 
 

133. Lichens reproduce by :

 
 
 
 

134. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. In a bacteriophage, DNA is present in:

 
 
 
 

138. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Bacteriophage consists of:

 
 
 
 

143. The term stele was given by:

 
 
 
 

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

 
 
 
 

145. Cryptogams include :

 
 
 
 

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

 
 
 
 

147. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

149. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

151. Diploxylic vascular bundles are found in:

 
 
 
 

152. Which is an exception to cell theory?

 
 
 
 

153. Which fixes atmospheric nitrogen?

 
 
 
 

154. Photosynthetic protists belong to:

 
 
 
 

155. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. The genetic material of poxvirus is:

 
 
 
 

166. The prothallus of fern is:

 
 
 
 

167. In Cycas:

 
 
 
 

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

 
 
 
 

169. Select the wrong statement:

 
 
 
 

170. Bacteria which are spherical are called:

 
 
 
 

171. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

176. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

178. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. 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:

 
 
 
 

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

 
 
 
 

184. Majority of lichens are :

 
 
 
 

185. The upper region of moss capsule is :

 
 
 
 

186. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

188. What is mycorrhiza?

 
 
 
 

189. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

191. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

193. Some biologists have used the term Mycetozoa for:

 
 
 
 

194. Triple antigen injection or vaccine are for:

 
 
 
 

195. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. What is absent in Deuteromycetes?

 
 
 
 

201. Acellular slime mold is/are:

 
 
 
 

202. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

204. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

206. The source of litmus is :

 
 
 
 

207. Nannandria are:

 
 
 
 

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

 
 
 
 

209.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. One of the distinctive feature of Spirogyra is :

 
 
 
 

217. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

219. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

227. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

228. Reserve food in Euglena is:

 
 
 
 

229. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Pollination in Pinus is :

 
 
 
 

233. Bacteria are considered to be plants because they:

 
 
 
 

234. Yeast grows more rapidly in:

 
 
 
 

235. The sori in Dryopteris are found on:

 
 
 
 

236. Rice, pea, potato are :

 
 
 
 

237. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Virion refers to:

 
 
 
 

245. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. In moss, sporophyte is formed on:

 
 
 
 

249. The tallest moss in the world is :

 
 
 
 

250. Germination of the seed of Pinus is :

 
 
 
 

251. Coenogamete is found in:

 
 
 
 

252. In Cycas the fertilization is:

 
 
 
 

253. Male gametophyte of Selaginella is found:

 
 
 
 

254. The leaf of Cycas shows:

 
 
 
 

255. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

256. Pollination drop is:

 
 
 
 

257. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. Citrus canker is caused by :

 
 
 
 

261. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

266. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

268. The archegonia in Selaginella develop on:

 
 
 
 

269. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

271. First animal pathogenic virus was discovered by:

 
 
 
 

272. Wine turns sour because of:

 
 
 
 

273. Circular DNA is seen in:

 
 
 
 

274. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

275. The largest alga is:

 
 
 
 

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

 
 
 
 

277. Which of the following is a parasitic algae?

 
 
 
 

278. Funaria is a Bryophyta because :

 
 
 
 

279. Oswald Tippo’s classification is:

 
 
 
 

280.

 

281. Ergot is obtained from :

 
 
 
 

282. Usually, bacteria reproduce by:

 
 
 
 

283. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

285. Clostridium can:

 
 
 
 

286. The fungi used as food are:

 
 
 
 

287. Spermatophyta are characterized by producing:

 
 
 
 

288. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

289. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

291. Plasmids are:

 
 
 
 

292. 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:

 
 
 
 

293. Which of the following is sago palm?

 
 
 
 

294. Ovules are not found enclosed in ovary in :

 
 
 
 

295. Who named prion?

 
 
 
 

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

 
 
 
 

297. Asexual reproductive body of Volvox is called:

 
 
 
 

298. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Iodine is obtained from :

 
 
 
 

312. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Mycoplasma contains:

 
 
 
 

316. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

318. Pinus gerardiana is :

 
 
 
 

319. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

321. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

323. Nitrogen-fixing bacteria may be located:

 
 
 
 

324. Club moss is the common name of :

 
 
 
 

325. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

327. The fern plant is:

 
 
 
 

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

 
 
 
 

329. Meristele of fern is:

 
 
 
 

330. Helotism word is used for the symbiosis between :

 
 
 
 

331. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Ovules are not found enclosed in ovary of:

 
 
 
 

339. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Which of the following have algal zone?

 
 
 
 

343. Saccharomyces ludwigii ascus produces:

 
 
 
 

344. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

346. Sleeping sickness disease in man is caused by:

 
 
 
 

347. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

349. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

351. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

353. Desired type of Cycas can be grown by:

 
 
 
 

354. The Rhizopus gametes are formed in:

 
 
 
 

355. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

357. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

359. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

361. Each chloroplast in Spirogyra bears :

 
 
 
 

362. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

363. Which of the following have a prokaryotic cell?

 
 
 
 

364. Chemosynthetic bacteria are:

 
 
 
 

365. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

367. The chief characteristic of bryophyta is that :

 
 
 
 

368. Standard size of a herbarium sheet is:

 
 
 
 

369. Why is Cycas called a living fossil?

 
 
 
 

370. The sporangia of Selaginella are attached:

 
 
 
 

371. Green plants are classified as:

 
 
 
 

372. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

378. Botulism is a:

 
 
 
 

379. Streptomyces falls under:

 
 
 
 

380. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

382. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

384. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

390. Mycoplasma are:

 
 
 
 

391. Which class of Protozoa includes all parasitic forms?

 
 
 
 

392. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Pollination in Cycas takes place by :

 
 
 
 

396. Quarantine regulations are concerned with:

 
 
 
 

397. Pneumonia is caused by:

 
 
 
 

398. Which of the following shows heterotrichous habit?

 
 
 
 

399. Most primitive group of vascular plants are:

 
 
 
 

400. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

405. 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?

 
 
 
 

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

 
 
 
 

407. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

409. Which is the nuclear material in bacteria?

 
 
 
 

410. Ectocarpus produces:

 
 
 
 

411. Viroids have:

 
 
 
 

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

 
 
 
 

413. Most common type of conjugation in Spirogyra is :

 
 
 
 

414. Simple polyembryony is found in :

 
 
 
 

415. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

416. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Mycoplasmas are not viruses in nature because:

 
 
 
 

420. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

421. The megaspore of Selaginella on germination produces:

 
 
 
 

422. Mixed cropping helps :

 
 
 
 

423. Centric discoid form of diatom is:

 
 
 
 

424. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

426. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Which is a gametophytic tissue?

 
 
 
 

430. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

432. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

434. In Pteris, the archegonia are present:

 
 
 
 

435. Bryophyta have a special character from other plants:

 
 
 
 

436. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

438. In dinoflagellates, the two flagella are:

 
 
 
 

439. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

441. Spermatophyta are characterized by producing:

 
 
 
 

442. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

444. Pasteur is famous for his:

 
 
 
 

445. Most of the lichens are composed of :

 
 
 
 

446. . Tapetum develops in:

 
 
 
 

447. In moss, sporogenous tissue arises from:

 
 
 
 

448. Botulinum toxin effects:

 
 
 
 

449. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

451. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

453. Which of the following does not contain chlorophyll?

 
 
 
 

454. 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:

 
 
 
 

455. Which causes red tide?

 
 
 
 

456. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

458. The stele of Dryopteris is a:

 
 
 
 

459. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

461. Aflatoxin is produced as a product in :

 
 
 
 

462. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. The spur of Pinus roxburghii has :

 
 
 
 

467. In a diplontic life cycle:

 
 
 
 

468. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

473. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The gametophyte produced by apospory is :

 
 
 
 

479. Facultative parasite is:

 
 
 
 

480. Fern prothallus produces:

 
 
 
 

481. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

483. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

485. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

487. The role of meiosis is for:

 
 
 
 

488. How a fern differs from a moss?

 
 
 
 

489. Common phycobiont in a lichen is :

 
 
 
 

490. Zoogametes are not found in:

 
 
 
 

491. In Pteris, the roots are:

 
 
 
 

492. Broad spectrum antibiotic is, which:

 
 
 
 

493. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

495. Longest known virus is:

 
 
 
 

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

 
 
 
 

497. Germ theory of disease was proposed by:

 
 
 
 

498. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. The leaves of Funaria are :

 
 
 
 

502. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

503. Multicellular and jacketed sex organs are found in :

 
 
 
 

504. Endemic plants are characterised by their:

 
 
 
 

505. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

510. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

515. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

517. Fern plants are:

 
 
 
 

518. In Funaria :

 
 
 
 

519. In moss, reduction division occurs in :

 
 
 
 

520. Diphtheria is caused by:

 
 
 
 

521. The megasporangium of Selaginella is:

 
 
 
 

522. Rhizopus and yeast are usually:

 
 
 
 

523. Embryophyta includes :

 
 
 
 

524. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

526. Most primitive kind of flower is represented by:

 
 
 
 

527. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

529. Club moss and Peat moss belong to:

 
 
 
 

530. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

532. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

534. The most primitive vascular plants is:

 
 
 
 

535. Ovary is absent in:

 
 
 
 

536. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

538. Green plants are classified as :

 
 
 
 

539. Red rot of sugarcane is caused by :

 
 
 
 

540. The coralloid roots are :

 
 
 
 

541. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

543. 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?

 
 
 
 

544. Which lichen is called Reindeer moss?

 
 
 
 

545. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

547. Water-net is the name of:

 
 
 
 

548. Funaria is :

 
 
 
 

549. Most of the algae are :

 
 
 
 

550. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

552. Absorptive nutrition is:

 
 
 
 

553. Small epidermal swellings due to infection are called :

 
 
 
 

554. Mycoplasma was discovered by:

 
 
 
 

555. The spermatozoids of Cycas are :

 
 
 
 

556. Special feature of pollen grains of Pinus is :

 
 
 
 

557. Yeast is a source of:

 
 
 
 

558. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

560. The mycelium of Rhizopus is:

 
 
 
 

561. Which organisms are the oldest life forms?

 
 
 
 

562. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

564. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

566. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Cell walls of Gram-positive bacteria contain:

 
 
 
 

571. Black rust of wheat is caused by:

 
 
 
 

572. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. The orders generally have the uniform endings:

 
 
 
 

580. Red rot of sugarcane is caused by:

 
 
 
 

581. Ovary is absent in :

 
 
 
 

582. Maximum diversity of life forms occurs in :

 
 
 
 

583. Pinus is:

 
 
 
 

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

 
 
 
 

585. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. 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:

 
 
 
 

589. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Most resistant spore in bacteria is:

 
 
 
 

599. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

601. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

606. Which part of Riccia bears nurse cells?

 
 
 
 

607. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

609. Who discovered heterothallism in fungi?

 
 
 
 

610. The nucleus of bacteria is:

 
 
 
 

611. Agar-agar is obtained from:

 
 
 
 

612. Rhizophore of Selaginella is:

 
 
 
 

613. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

615. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

617. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. The group algae possesses representatives belonging to kingdom:

 
 
 
 

621. Enteric bacteria are those bacteria that live:

 
 
 
 

622. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

624. Cleavage polyembryony is found in :

 
 
 
 

625. Psilotum is:

 
 
 
 

626. Penicillin is obtained from:

 
 
 
 

627. Total parasites belong to:

 
 
 
 

628. Cycas plant in appearance resembles :

 
 
 
 

629. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Interferon is a:

 
 
 
 

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

 
 
 
 

637. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

639. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Which is absent from the xylem of Cycas?

 
 
 
 

648. Which is an edible fungus?

 
 
 
 

649. Pasteurization of milk involves heating for:

 
 
 
 

650. Rhizopus belongs to:

 
 
 
 

651. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

653. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

654. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

656. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

661. Embryophyta includes:

 
 
 
 

662. The plants of Funaria grow :

 
 
 
 

663. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

668. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

670. Which of the following are absent in Mycoplasma?

 
 
 
 

671. Early blight of potato is caused by:

 
 
 
 

672. The middle sterile part of capsule is called:

 
 
 
 

673. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

678. Most primitive embryophytes are placed in:

 
 
 
 

679. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

681. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

683. Ulothrix produces :

 
 
 
 

684. Spirogyra differs from moss protonema in having :

 
 
 
 

685. Which of the following is a heterosporous pteridophyte?

 
 
 
 

686. Gram stain is used to:

 
 
 
 

687. Funaria is :

 
 
 
 

688. Sexual reproduction of lichen is due to :

 
 
 
 

689. True sexuality is not found in:

 
 
 
 

690. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. In Gymnosperms endosperm is a:

 
 
 
 

694. Late blight of potato is caused by :

 
 
 
 

695. Black rust of wheat is caused by:

 
 
 
 

696. The Rhizopus is:

 
 
 
 

697. To which class Riccia belongs :

 
 
 
 

698. Siphonogamy is found in:

 
 
 
 

699. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

701. The vascular bundles of Cycas stem are :

 
 
 
 

702. Tautonyms are illegitimate in:

 
 
 
 

703. Lichen show :

 
 
 
 

704. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

709. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. NBG of Lucknow is now named as:

 
 
 
 

720. Woody climbers are known as :

 
 
 
 

721. The order generally ends with:

 
 
 
 

722. 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?

 
 
 
 

723. The sporangiophores in Rhizopus are:

 
 
 
 

724. Penicillin was discovered by:

 
 
 
 

725. Vascular cryptogam is the term used for :

 
 
 
 

726. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

728. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

730. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Streptomycin is obtained from:

 
 
 
 

735. Winged pollen grains are found in :

 
 
 
 

736. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

738. Fruits are not found in:

 
 
 
 

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

 
 
 
 

740. Banana bunchy top is caused by :

 
 
 
 

741. What are plasmids?

 
 
 
 

742. Halophiles are the bacteria that require for growth:

 
 
 
 

743. Meiosis in Ulothrix takes place:

 
 
 
 

744. LSD is:

 
 
 
 

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

 
 
 
 

746. Mycoplasma are sensitive to:

 
 
 
 

747. Which have the largest antherozoid?

 
 
 
 

748. Linnaeus is credited with introducing:

 
 
 
 

749. Generic name of mango is:

 
 
 
 

750. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

751. Soil fertility is lost by the activities of:

 
 
 
 

752. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

754. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Methanogens belong to:

 
 
 
 

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

 
 
 
 

764. Liverworts are included in :

 
 
 
 

765. Rhizoids of Riccia are :

 
 
 
 

766. Which is not true for Escherichia coli?

 
 
 
 

767. The rhizoids of Funaria are :

 
 
 
 

768. Where does meiosis occur in yeast?

 
 
 
 

769. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. Chemosynthetic bacteria are:

 
 
 
 

782. Which of the following is true for viruses?

 
 
 
 

783. Viruses are commonly transmitted in plants through:

 
 
 
 

784. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

786. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

791. In Cycas which structure is equivalent to stamen?

 
 
 
 

792. The leaves of Funaria are :

 
 
 
 

793. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

795. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

797. Facultative saprophyte is:

 
 
 
 

798. Heterocysts are found in :

 
 
 
 

799. Isomorphic type alternation of generation is found in:

 
 
 
 

800. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

802.

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

 
 
 
 

804. Which of the following statements is not correct?

 
 
 
 

805. The sporangium of fern contains nearly:

 
 
 
 

806. The gametophyte of fern is as:

 
 
 
 

807. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

809. What is special feature of fern archegonia?

 
 
 
 

810. To which country Antony van Leeuwenhoek belong?

 
 
 
 

811. Selaginella differs from Moss in having:

 
 
 
 

812. Nitrifying bacteria play an important role by converting:

 
 
 
 

813. E coli is a:

 
 
 
 

814. 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?

 
 
 
 

815. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

817. Citrus canker is caused by:

 
 
 
 

818. Sometimes the bacterial cell is enclosed in:

 
 
 
 

819. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

821. The alga, Spirogyra are found in :

 
 
 
 

822. Cycas is:

 
 
 
 

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

 
 
 
 

824. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Lichens are ecologically important because :

 
 
 
 

828. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. 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:

 
 
 
 

834. Bryophyta have been placed in cryptogams because:

 
 
 
 

835. Metulae are found in:

 
 
 
 

836. The fungi are mostly:

 
 
 
 

837. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

842. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Heterosporous pteridophytes always form:

 
 
 
 

852. Placenta in fern is:

 
 
 
 

853. What is the role of nitrifying bacteria?

 
 
 
 

854. Among the algae kelps are :

 
 
 
 

855. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

857. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. A gill of Agaricus:

 
 
 
 

862. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

864. The tree fern is: