Quiz_Random

1. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

3. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

5. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

7. In binomial system most of the words are:

 
 
 
 

8. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

10. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

12. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Rhizopus and yeast are usually:

 
 
 
 

17. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

19. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

20. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

21. Water bloom is generally caused by :

 
 
 
 

22. Viruses are commonly transmitted in plants through:

 
 
 
 

23. The disease apple scab is caused by:

 
 
 
 

24. Virion refers to:

 
 
 
 

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

 
 
 
 

26. Fruits are not found in :

 
 
 
 

27. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

32. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. The antherozoids of Funaria are :

 
 
 
 

36. Infective part of virus was discovered by:

 
 
 
 

37. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

39. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

41. The gametophyte of moss has distinct phases :

 
 
 
 

42. Male gametes in Dryopteris are:

 
 
 
 

43. The chloroplast in Ulothrix is :

 
 
 
 

44. Spores of which plants have chloroplast:

 
 
 
 

45. The rhizoids of Funaria are :

 
 
 
 

46. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

48. Photoautotrophic bacteria have:

 
 
 
 

49. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

51. Seeds are characteristically found in :

 
 
 
 

52.

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

 
 
 
 

54. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. 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:

 
 
 
 

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

 
 
 
 

60. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

62. The leaves of Funaria are :

 
 
 
 

63. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Reproduction in Cycas takes place by :

 
 
 
 

67. Aflatoxin is produced by:

 
 
 
 

68. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

70. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

75. The lichens growing on rocks are called :

 
 
 
 

76. Green plants are classified as :

 
 
 
 

77. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

79. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

93. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

95. Lichen show :

 
 
 
 

96. Fern plants are:

 
 
 
 

97. Germ theory of disease was proposed by:

 
 
 
 

98. Which is a redwood tree?

 
 
 
 

99. All archaebacteria lack:

 
 
 
 

100. The fern plant is:

 
 
 
 

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

 
 
 
 

102. Discovery of penicillin was based on:

 
 
 
 

103. The term stele was given by:

 
 
 
 

104. Mycoplasma is different from bacteria due to:

 
 
 
 

105. All protozoans possess:

 
 
 
 

106. An alga which is rich in proteins:

 
 
 
 

107. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Which statement is wrong in regard to bacteria?

 
 
 
 

111. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

113. The genetic material of poxvirus is:

 
 
 
 

114. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

119. In Cycas microsporangia are borne on:

 
 
 
 

120. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Bacteriophages have been used as:

 
 
 
 

125. Winged seeds are found in :

 
 
 
 

126. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

128. Fern prothallus is:

 
 
 
 

129. Pneumonia is caused by:

 
 
 
 

130. What is streptomycin?

 
 
 
 

131. Pasteurized milk is:

 
 
 
 

132. Cycas is:

 
 
 
 

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

 
 
 
 

134. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. The seedless plants which possess vascular tissues are:

 
 
 
 

139. The flagella of Chlamydomonas are:

 
 
 
 

140. Vascular cryptogam is the term used for :

 
 
 
 

141. Methanogens belong to:

 
 
 
 

142. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

144. 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:

 
 
 
 

145. Chemosynthetic bacteria are:

 
 
 
 

146. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

148. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

150. Cycas is :

 
 
 
 

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

 
 
 
 

152. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. Which one of the following is a monocot?

 
 
 
 

156. Heterosporous pteridophytes always form:

 
 
 
 

157. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Number of capsomeres forming capsid of TMV is:

 
 
 
 

164. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Photosynthetic bacteria have:

 
 
 
 

168. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

170. What are plasmids?

 
 
 
 

171. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

177. Clostridium can:

 
 
 
 

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

 
 
 
 

179. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

181. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

183. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. 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?

 
 
 
 

189. Oswald Tippo’s classification was based on :

 
 
 
 

190. Streptomycin is obtained from:

 
 
 
 

191. Chemosynthetic bacteria are:

 
 
 
 

192. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Viruses have:

 
 
 
 

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

 
 
 
 

197. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

198. Which one of the following statement is wrong?

 
 
 
 

199. An Hfr bacterium is one that contains:

 
 
 
 

200. The antibiotic is obtained from:

 
 
 
 

201. Who discovered cyanophages?

 
 
 
 

202. The ascus of yeast contains:

 
 
 
 

203. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. 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:

 
 
 
 

207. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Rhizophore of Selaginella is:

 
 
 
 

211. In Cycas:

 
 
 
 

212. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

219. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Halophiles are the bacteria that require for growth:

 
 
 
 

225. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

227. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

229. Amoeba is a member of the phylum:

 
 
 
 

230. Coenogamete is found in:

 
 
 
 

231. Each chloroplast in Spirogyra bears :

 
 
 
 

232. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

237. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Typhoid in man is caused by:

 
 
 
 

244. Proembryo in Pinus is :

 
 
 
 

245. Who named prion?

 
 
 
 

246. Multicellular and jacketed sex organs are found in :

 
 
 
 

247. Cap cells are found in the filament of:

 
 
 
 

248. Cycas revoluta is widely grown as :

 
 
 
 

249. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

251. Circular DNA is seen in:

 
 
 
 

252. Bacteriophage consists of:

 
 
 
 

253. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Which class of Protozoa includes all parasitic forms?

 
 
 
 

257. Mucilaginous canals in Cycas are found in :

 
 
 
 

258. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

260. In moss, sporophyte is formed on:

 
 
 
 

261. The sori in Dryopteris are found on:

 
 
 
 

262. The source of litmus is :

 
 
 
 

263. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

265. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Pinus microsporophyll bears:

 
 
 
 

272. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

274. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Funaria are commonly found :

 
 
 
 

282. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

284. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

285. The young leaves of Cycas have :

 
 
 
 

286. Ginkgo biloba is a:

 
 
 
 

287. The DNA of E coli is:

 
 
 
 

288. Embryo formation is not known in :

 
 
 
 

289. The sporophyte of Riccia is :

 
 
 
 

290. Lichens are ecologically important because :

 
 
 
 

291. Leprosy is caused by:

 
 
 
 

292. Who discovered heterothallism in fungi?

 
 
 
 

293. The teeth of peristome of Funaria are :

 
 
 
 

294. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. The root nodules of leguminous plants contain:

 
 
 
 

299. Pollination drop is:

 
 
 
 

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

 
 
 
 

301. To which country Antony van Leeuwenhoek belong?

 
 
 
 

302. . Tapetum develops in:

 
 
 
 

303. Late blight of potato is caused by :

 
 
 
 

304. Which of the following have algal zone?

 
 
 
 

305. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

307. Bacteria are placed under:

 
 
 
 

308. Smallpox is caused by:

 
 
 
 

309. NBG of Lucknow is now named as:

 
 
 
 

310. Cocci types of bacteria are:

 
 
 
 

311. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

313. Saccharomyces ludwigii ascus produces:

 
 
 
 

314. The first to isolate a plant virus was:

 
 
 
 

315. The zygospore in Rhizopus on germination forms:

 
 
 
 

316. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

318. 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:

 
 
 
 

319. Longest known virus is:

 
 
 
 

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

 
 
 
 

321. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Which group of algae have an incipient nucleus?

 
 
 
 

325. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

327. Red rot of sugarcane is caused by :

 
 
 
 

328. Mycoplasma are:

 
 
 
 

329. Protists which are diploid reproduce sexually by:

 
 
 
 

330. In tracheophyta:

 
 
 
 

331. Reproduction in Rhizopus is:

 
 
 
 

332. Yeast grows more rapidly in:

 
 
 
 

333. Spermatophyta are characterized by producing:

 
 
 
 

334. Male gametophyte of Selaginella is found:

 
 
 
 

335. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

337. Pythium debaryanum is the causative agent of:

 
 
 
 

338. Kuru, a human disease is caused by:

 
 
 
 

339. Bacteria are found everywhere, except:

 
 
 
 

340. Which of the following does not contain chlorophyll?

 
 
 
 

341. The chloroplast of Chlamydomonas are:

 
 
 
 

342. Roots are absent in :

 
 
 
 

343. The orders generally have the uniform endings:

 
 
 
 

344. Helotism word is used for the symbiosis between :

 
 
 
 

345. Bacteria growing on synthetic medium are called:

 
 
 
 

346. The fungi are mostly:

 
 
 
 

347.

348. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Which of the following have a prokaryotic cell?

 
 
 
 

352. Azolla growing in paddy fields helps in:

 
 
 
 

353. Transfusion tissue is present in the leaflet of:

 
 
 
 

354. Most primitive embryophytes are placed in:

 
 
 
 

355. The truncated cone of HIV consists of:

 
 
 
 

356. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

358. Plasmids are:

 
 
 
 

359. Banana bunchy top is caused by :

 
 
 
 

360. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

362. The tree fern is:

 
 
 
 

363. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

365. Fern phloem lacks:

 
 
 
 

366. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

368. Desired type of Cycas can be grown by:

 
 
 
 

369. Isomorphic type alternation of generation is found in:

 
 
 
 

370. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

372. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. Cell walls of Gram-positive bacteria contain:

 
 
 
 

378. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

380. Which of the following are included in Tracheophyta?

 
 
 
 

381. E coli is a:

 
 
 
 

382. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

384. Spirogyra differs from moss protonema in having :

 
 
 
 

385. Nitrogen-fixing bacteria may be located:

 
 
 
 

386. Most primitive group of vascular plants are:

 
 
 
 

387. Select the wrong statement:

 
 
 
 

388. Antibiotic has been extracted from :

 
 
 
 

389. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. The middle sterile part of capsule is called:

 
 
 
 

394.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Which of the following is a parasitic algae?

 
 
 
 

401. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

403. Cycas plant in appearance resembles :

 
 
 
 

404. In dinoflagellates, the two flagella are:

 
 
 
 

405. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

407. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

409. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

411. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

416. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

418. Most of the algae are :

 
 
 
 

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

 
 
 
 

420. Wine turns sour because of:

 
 
 
 

421. How is moss different from fern?

 
 
 
 

422. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

428. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

430. Vegetative reproduction in Cycas is by means of :

 
 
 
 

431. The gametophyte produced by apospory is :

 
 
 
 

432. The sporophyte of Riccia is represented by :

 
 
 
 

433. Lichens are pioneers of vegetation in a :

 
 
 
 

434. In angiosperms double fertilization represents:

 
 
 
 

435. Agar-agar is obtained from:

 
 
 
 

436. In Gymnosperms endosperm is a:

 
 
 
 

437. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

438. Citrus canker is caused by :

 
 
 
 

439. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

441. The plants of Funaria grow :

 
 
 
 

442. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Water-net is the name of:

 
 
 
 

446. The group algae possesses representatives belonging to kingdom:

 
 
 
 

447. Total parasites belong to:

 
 
 
 

448. Club moss and Peat moss belong to:

 
 
 
 

449. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

451. Ovary is absent in:

 
 
 
 

452. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Who discovered streptomycin?

 
 
 
 

457. The fungi that grow on wood are called:

 
 
 
 

458. The vascular bundles of Cycas stem are :

 
 
 
 

459. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

461. What is special feature of fern archegonia?

 
 
 
 

462. 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:

 
 
 
 

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

 
 
 
 

464. The sporangium of fern contains nearly:

 
 
 
 

465. Funaria is :

 
 
 
 

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

 
 
 
 

467. The prothallus of fern represents the plant:

 
 
 
 

468. Cleavage polyembryony is found in :

 
 
 
 

469. The disease symptom necrosis refers to :

 
 
 
 

470. The leaves of Funaria are :

 
 
 
 

471. The role of meiosis is for:

 
 
 
 

472. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Chief constituents of bordeaux mixture are :

 
 
 
 

486. The megaspore of Selaginella on germination produces:

 
 
 
 

487. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

489. Ergot of rye is caused by:

 
 
 
 

490. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

492. Mostly type of zygospore in Ulothrix is:

 
 
 
 

493. Fern prothallus produces:

 
 
 
 

494. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

496. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Placenta in fern is:

 
 
 
 

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

 
 
 
 

503. The sexual reproductive organs in Rhizopus are:

 
 
 
 

504. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

506. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. True sexuality is not found in:

 
 
 
 

510. Endemic plants are characterised by their:

 
 
 
 

511. Gram stain is used to:

 
 
 
 

512. Pollination in Cycas takes place by :

 
 
 
 

513. The spur of Pinus roxburghii has :

 
 
 
 

514. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. The fungi are usually:

 
 
 
 

523. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. In a diplontic life cycle:

 
 
 
 

527. Sexual reproduction of lichen is due to :

 
 
 
 

528. Pollination in Pinus is :

 
 
 
 

529. Heterocysts are found in :

 
 
 
 

530. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Generic name of mango is:

 
 
 
 

534. The chromosomal number in:

 
 
 
 

535. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. In Cycas the fertilization is:

 
 
 
 

544. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Heterospory is the production of:

 
 
 
 

548. Ulothrix produces :

 
 
 
 

549. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

551. The archegonia of Selaginella are differentiated by:

 
 
 
 

552. Mixed cropping helps :

 
 
 
 

553. Winged pollen grains are found in :

 
 
 
 

554. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Which of the following is a heterosporous pteridophyte?

 
 
 
 

558. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

560. All algae have:

 
 
 
 

561. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Which is the nuclear material in bacteria?

 
 
 
 

565. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Lichens reproduce by :

 
 
 
 

569. The microsporophylls on the cone of Cycas are :

 
 
 
 

570. Milk is converted to curd by:

 
 
 
 

571. Vascular cryptogams is the term used for:

 
 
 
 

572. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

574. Pythium debaryanum is the causative agent of:

 
 
 
 

575. The Rhizopus gametes are formed in:

 
 
 
 

576. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Funaria is :

 
 
 
 

583. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

588. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

590. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

592. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

597. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. In Pteris, the archegonia are present:

 
 
 
 

606. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Select the wrong statement:

 
 
 
 

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

 
 
 
 

611. Smut of maize is caused by :

 
 
 
 

612. Which is a tautonym?

 
 
 
 

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

 
 
 
 

614. Which is an edible fungus?

 
 
 
 

615. The order generally ends with:

 
 
 
 

616. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. The development of Selaginella embryo is:

 
 
 
 

620. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

622. Which is absent from the xylem of Cycas?

 
 
 
 

623. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Bivalved siliceous shell or frustule occur in:

 
 
 
 

628. In Pteris, the roots are:

 
 
 
 

629. Choose the correct statement about Spirogyra:

 
 
 
 

630. TMV was isolated in crystalline form by:

 
 
 
 

631. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

633. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Citrus canker is caused by:

 
 
 
 

637. In Funaria :

 
 
 
 

638. Most primitive kind of flower is represented by:

 
 
 
 

639. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Photosynthetic protists belong to:

 
 
 
 

643. Bacteria differ from viruses in being sensitive to:

 
 
 
 

644. Pteridophytes are also known as :

 
 
 
 

645. In a bacteriophage, DNA is present in:

 
 
 
 

646. One of the distinctive feature of Spirogyra is :

 
 
 
 

647. Water-borne bacterial diseases are:

 
 
 
 

648. The nucleus of bacteria is:

 
 
 
 

649. Funaria can be differentiated from Cycas :

 
 
 
 

650. Ovules are not found enclosed in ovary of:

 
 
 
 

651. The male gametes of Pinus are :

 
 
 
 

652. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. In Cycas which structure is equivalent to stamen?

 
 
 
 

657. The gametophyte of fern is as:

 
 
 
 

658. Where does meiosis occur in yeast?

 
 
 
 

659. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

661. Which of the following is sago palm?

 
 
 
 

662. Pteridophyta are also called:

 
 
 
 

663. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

664. Usually, bacteria reproduce by:

 
 
 
 

665. Germination of the seed of Pinus is :

 
 
 
 

666. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

668. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

670. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

672. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. The largest known bacterium is:

 
 
 
 

679. Majority of lichens are :

 
 
 
 

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

 
 
 
 

681. Siphonogamy is found in:

 
 
 
 

682. The archegonia in Selaginella develop on:

 
 
 
 

683. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Sporophyte of fern is:

 
 
 
 

691. Fruits are not found in:

 
 
 
 

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

 
 
 
 

693. The tallest moss in the world is :

 
 
 
 

694. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

696. Streptomyces falls under:

 
 
 
 

697. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Iodine is obtained from:

 
 
 
 

701. Virus and bacteriophage are made-up of:

 
 
 
 

702. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

704. Which of the following is a monocot?

 
 
 
 

705. Sexual reproduction in Rhizopus is by:

 
 
 
 

706. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. The lambda phase is a:

 
 
 
 

711. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

713. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

718. 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:

 
 
 
 

719. Which of the following lichens is harmful?

 
 
 
 

720. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Acetobacter is useful in:

 
 
 
 

725. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

726. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

727. Special feature of pollen grains of Pinus is :

 
 
 
 

728. Sometimes the bacterial cell is enclosed in:

 
 
 
 

729. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Viroids have:

 
 
 
 

733. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Yeast belongs to class:

 
 
 
 

737. Pasteurization of milk involves heating for:

 
 
 
 

738. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

740. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Facultative parasite is:

 
 
 
 

744. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Psilotum is:

 
 
 
 

748. Fairy ring is the name given to:

 
 
 
 

749. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

756. Anoxygenic photosynthesis occurs in:

 
 
 
 

757. Lichens show :

 
 
 
 

758. Leaf spot of groundnut is caused by :

 
 
 
 

759. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Pseudomycelium is found in:

 
 
 
 

763. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

765. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. In moss, calyptra is formed from:

 
 
 
 

770. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

772. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

774. Botulism is a:

 
 
 
 

775. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

777. What is the role of nitrifying bacteria?

 
 
 
 

778. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

779. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

781. Metulae are found in:

 
 
 
 

782. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

784. Which of the following are absent in Mycoplasma?

 
 
 
 

785. Red rot of sugarcane is caused by :

 
 
 
 

786. Simple polyembryony is found in :

 
 
 
 

787. The two conjugating gametangia of Rhizopus are:

 
 
 
 

788. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

790. Gymnosperms could also be called as:

 
 
 
 

791. What is absent in Deuteromycetes?

 
 
 
 

792. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

794. Ovary is absent in :

 
 
 
 

795. Which of the following applies to Selaginella?

 
 
 
 

796. Heterotrichous habit means :

 
 
 
 

797. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

799. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

801. Lichens are indicators of :

 
 
 
 

802. Early blight of potato is caused by:

 
 
 
 

803. LSD is:

 
 
 
 

804. Cyathia is characterized by:

 
 
 
 

805. Nannandria are:

 
 
 
 

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

 
 
 
 

807. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

809. 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?

 
 
 
 

810. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

812. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

817. In Funaria, calyptra is derived from :

 
 
 
 

818. 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?

 
 
 
 

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

 
 
 
 

820. Vascular tissue is found in :

 
 
 
 

821. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

823.

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

 
 
 
 

825. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. In moss, reduction division occurs in :

 
 
 
 

830. Lichens form the first community in

 
 
 
 

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

 
 
 
 

832. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Saccharomyces is well known for:

 
 
 
 

836. Oswald Tippo’s classification is:

 
 
 
 

837. Pinus is:

 
 
 
 

838. Red rot of sugarcane is caused by:

 
 
 
 

839. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

841. In moss, conducting tissue is made up of

 
 
 
 

842. Pinus gerardiana is :

 
 
 
 

843. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

845. Cryptogams include :

 
 
 
 

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

 
 
 
 

847. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

849. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

851. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

856. The fungi used as food are:

 
 
 
 

857. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

858. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

860. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

862. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

864. Aflatoxin is produced as a product in :