Quiz_Random

1. Club moss is the common name of :

 
 
 
 

2. Heterospory is the production of:

 
 
 
 

3. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Most primitive embryophytes are placed in :

 
 
 
 

11. Cycas is different from mango in :

 
 
 
 

12. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

14. Which of the following are included in Tracheophyta?

 
 
 
 

15. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

17. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

19. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

21. Mostly type of zygospore in Ulothrix is:

 
 
 
 

22. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Spermatophyta are characterized by producing:

 
 
 
 

26. Diphtheria is caused by:

 
 
 
 

27. Fruiting body of lichens is :

 
 
 
 

28. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

30. Which have the largest antherozoid?

 
 
 
 

31. Chief constituents of bordeaux mixture are :

 
 
 
 

32. Bacteria are found everywhere, except:

 
 
 
 

33. Spores of which plants have chloroplast:

 
 
 
 

34. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

36. Aflatoxin is produced by:

 
 
 
 

37. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

39. 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:

 
 
 
 

40. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

42. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

44. Red rot of sugarcane is caused by :

 
 
 
 

45. In a diplontic life cycle:

 
 
 
 

46. The archegonia of Selaginella are differentiated by:

 
 
 
 

47. Facultative saprophyte is:

 
 
 
 

48. In Herpes virus DNA is:

 
 
 
 

49. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Asexual reproductive body of Volvox is called:

 
 
 
 

53. Late blight of potato is caused by :

 
 
 
 

54. The order generally ends with:

 
 
 
 

55. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

60. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Ovary is absent in:

 
 
 
 

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

 
 
 
 

65. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

67. Fern phloem lacks:

 
 
 
 

68. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

70. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. The spermatozoids of Cycas are :

 
 
 
 

78. Heterospory and ligulate leaves are a feature of:

 
 
 
 

79. Lichens form the first community in

 
 
 
 

80. Protozoans are considered animals because these are:

 
 
 
 

81. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Ovules are not found enclosed in ovary in :

 
 
 
 

85. Pasteurization of milk involves heating for:

 
 
 
 

86. Funaria are commonly found :

 
 
 
 

87. Pneumonia is caused by:

 
 
 
 

88. Gram stain is used to:

 
 
 
 

89. 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?

 
 
 
 

90. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

91. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. What is absent in Deuteromycetes?

 
 
 
 

99. Helotism word is used for the symbiosis between :

 
 
 
 

100. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

102. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Soil fertility is lost by the activities of:

 
 
 
 

106. Cycas plant in appearance resembles :

 
 
 
 

107. Protistan algae obtain their food as:

 
 
 
 

108. Banana bunchy top is caused by :

 
 
 
 

109. Which class of Protozoa includes all parasitic forms?

 
 
 
 

110. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

112. Pseudomycelium is found in:

 
 
 
 

113. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

115. The ferns are usually found:

 
 
 
 

116. Gametophyte is the main plant body in :

 
 
 
 

117. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

119. The disease symptom necrosis refers to :

 
 
 
 

120. Select the wrong statement:

 
 
 
 

121. Lichens show :

 
 
 
 

122. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

124. Funaria is :

 
 
 
 

125. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

127. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Most resistant spore in bacteria is:

 
 
 
 

132. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

134. Mycoplasma are sensitive to:

 
 
 
 

135. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

137. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Which of the following have a prokaryotic cell?

 
 
 
 

146. The chief characteristic of class Ascomycetes is:

 
 
 
 

147. The megaspore of Selaginella on germination produces:

 
 
 
 

148. Cryptogams include :

 
 
 
 

149. Cleavage polyembryony is found in :

 
 
 
 

150. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

152. In Pteris, the archegonia are present:

 
 
 
 

153. Placenta in fern is:

 
 
 
 

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

 
 
 
 

155. Redness of red sea is due to :

 
 
 
 

156. Lichens are indicators of :

 
 
 
 

157. In dinoflagellates, the two flagella are:

 
 
 
 

158. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

160. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

162. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Chemosynthetic bacteria are:

 
 
 
 

167. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

169. The nucleus of bacteria is:

 
 
 
 

170. Pinus microsporophyll bears:

 
 
 
 

171. The DNA of E coli is:

 
 
 
 

172. Oswald Tippo’s classification is:

 
 
 
 

173. Cocci types of bacteria are:

 
 
 
 

174. Saccharomyces is used in:

 
 
 
 

175. Which causes red tide?

 
 
 
 

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

 
 
 
 

177. Which of the following are absent in Mycoplasma?

 
 
 
 

178. The leafy fern plant represents the:

 
 
 
 

179. Fairy ring is the name given to:

 
 
 
 

180. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

182. Azolla and Salvinia both are:

 
 
 
 

183. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

185. 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?

 
 
 
 

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

 
 
 
 

187. Bacteriophages have been used as:

 
 
 
 

188. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

198. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

200. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Smallpox is caused by:

 
 
 
 

204. Majority of lichens are :

 
 
 
 

205. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. The gametophyte of moss has distinct phases :

 
 
 
 

209. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

211. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Funaria is :

 
 
 
 

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

 
 
 
 

217. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

219. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. The antherozoids of Funaria are :

 
 
 
 

223. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

225. Pinus is:

 
 
 
 

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

 
 
 
 

227. A gill of Agaricus:

 
 
 
 

228. Metulae are found in:

 
 
 
 

229. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

231. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

233. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

235. The gametophyte produced by apospory is :

 
 
 
 

236. Select the correct statement: (NEET 2016)

 
 
 
 

237. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

246. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

248. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

250. The sporangia of Selaginella are attached:

 
 
 
 

251. Which fixes atmospheric nitrogen?

 
 
 
 

252. Select the wrong statement:

 
 
 
 

253. Lichens reproduce by :

 
 
 
 

254. Total parasites belong to:

 
 
 
 

255. The lichens growing on rocks are called :

 
 
 
 

256. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Male gametophyte of Selaginella is found:

 
 
 
 

262. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

264. Winged pollen grains are found in :

 
 
 
 

265. The similarity between cyanobacteria and bacteria:

 
 
 
 

266. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

267. TMV was isolated in crystalline form by:

 
 
 
 

268. Bacteriophage consists of:

 
 
 
 

269. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Which part of Riccia bears nurse cells?

 
 
 
 

273. In moss, conducting tissue is made up of

 
 
 
 

274. Black rust of wheat is caused by:

 
 
 
 

275. The microsporophylls on the cone of Cycas are :

 
 
 
 

276. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

286. In Cycas the fertilization is:

 
 
 
 

287. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

289. Late blight of potato is caused by:

 
 
 
 

290. Amoeba is a member of the phylum:

 
 
 
 

291. Why is Cycas called a living fossil?

 
 
 
 

292. Who named prion?

 
 
 
 

293. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

295. Embryophyta includes:

 
 
 
 

296. Meristele of fern is:

 
 
 
 

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

 
 
 
 

298. Triple antigen injection or vaccine are for:

 
 
 
 

299. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Desired type of Cycas can be grown by:

 
 
 
 

304. Nitrifying bacteria play an important role by converting:

 
 
 
 

305. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Pythium debaryanum is the causative agent of:

 
 
 
 

312. Seeds are characteristically found in:

 
 
 
 

313. The development of sporangium in Selaginella is:

 
 
 
 

314. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. All archaebacteria lack:

 
 
 
 

319. 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:

 
 
 
 

320. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

322. Leaf spot of groundnut is caused by :

 
 
 
 

323. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

324. Some bacteria cannot be killed easily because of:

 
 
 
 

325. Yeast is a source of:

 
 
 
 

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

 
 
 
 

327. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

329. Liverworts are included in :

 
 
 
 

330. Green plants are classified as:

 
 
 
 

331. Fertility of the soil is increased by:

 
 
 
 

332. Which one of the following is a monocot?

 
 
 
 

333. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

335. What is mycorrhiza?

 
 
 
 

336. In moss, sporophyte is formed on:

 
 
 
 

337. Detailed study of bacteriophage was made by:

 
 
 
 

338. Cycas revoluta is widely grown as :

 
 
 
 

339. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

344. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

348. 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:

 
 
 
 

349. An alga which is rich in proteins:

 
 
 
 

350. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Some biologists have used the term Mycetozoa for:

 
 
 
 

355. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

356. Disease resistant plant varieties can be produced by :

 
 
 
 

357. John Hutchinson divided dicots into two divisions:

 
 
 
 

358. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

360. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Azolla growing in paddy fields helps in:

 
 
 
 

364. Cycas is similar to a mustard plant :

 
 
 
 

365. Reproduction in Cycas takes place by :

 
 
 
 

366. Pasteur is famous for his:

 
 
 
 

367. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

373. Funaria is a Bryophyta because :

 
 
 
 

374. Saccharomyces is well known for:

 
 
 
 

375. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

377. Discovery of penicillin was based on:

 
 
 
 

378. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

380. Water bloom is generally caused by :

 
 
 
 

381. Cellular slime mold is:

 
 
 
 

382. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

384.

 

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

 
 
 
 

386. The sporangiophores in Rhizopus are:

 
 
 
 

387. Cycas is :

 
 
 
 

388. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

390. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

391. How a fern differs from a moss?

 
 
 
 

392. The central part of Funaria axis is :

 
 
 
 

393. Roots are absent in :

 
 
 
 

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

 
 
 
 

395. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

401. Enzymes are absent in:

 
 
 
 

402. The phloem of vascular system of Cycas is :

 
 
 
 

403. Anoxygenic photosynthesis occurs in:

 
 
 
 

404. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

406. The sexual reproductive organs in Rhizopus are:

 
 
 
 

407. Green plants are classified as :

 
 
 
 

408. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

409. Citrus canker is caused by :

 
 
 
 

410. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

412. Which of the following is a heterosporous pteridophyte?

 
 
 
 

413. The zoospores of Ulothrix are :

 
 
 
 

414. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

416. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

421. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Embryophyta includes :

 
 
 
 

425. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

427. Water-net is the name of:

 
 
 
 

428. Spermatophyta are characterized by producing:

 
 
 
 

429. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

431. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

437. Rhizoids of Riccia are :

 
 
 
 

438. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

440. Rhizopus belongs to:

 
 
 
 

441. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

443. The spur of Pinus roxburghii has :

 
 
 
 

444. Genetic material of TMV is:

 
 
 
 

445. Penicillin is obtained from:

 
 
 
 

446. 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:

 
 
 
 

447. Sleeping sickness disease in man is caused by:

 
 
 
 

448. Which is not true for Escherichia coli?

 
 
 
 

449. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

454. Bacteria are considered to be plants because they:

 
 
 
 

455. Woody climbers are known as :

 
 
 
 

456. Oswald Tippo’s classification was based on :

 
 
 
 

457. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

459. The term stele was given by:

 
 
 
 

460. The leaves of Funaria are :

 
 
 
 

461. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

463. Broad spectrum antibiotic is, which:

 
 
 
 

464. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

466. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Rhizophore of Selaginella is:

 
 
 
 

471. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

476. Mycoplasmas are not viruses in nature because:

 
 
 
 

477. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

478. The chloroplast in Ulothrix is :

 
 
 
 

479. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

481. The chief characteristic of bryophyta is that :

 
 
 
 

482. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

484. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

486. The tallest moss in the world is :

 
 
 
 

487. 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:

 
 
 
 

488. Which of the following statements is not correct?

 
 
 
 

489.

490. Citrus canker is caused by:

 
 
 
 

491. Wine turns sour because of:

 
 
 
 

492. Selaginella differs from Moss in having:

 
 
 
 

493. The middle sterile part of capsule is called:

 
 
 
 

494. Funaria can be differentiated from Cycas :

 
 
 
 

495. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

500. Sometimes the bacterial cell is enclosed in:

 
 
 
 

501. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Which is a fungicide?

 
 
 
 

512. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

514. In Funaria :

 
 
 
 

515. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

517. Nannandria are:

 
 
 
 

518. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

520. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Vascular cryptogam is the term used for :

 
 
 
 

528. Aflatoxin is produced as a product in :

 
 
 
 

529. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Cyanophage is a virus that attacks:

 
 
 
 

539. Photoautotrophic bacteria have:

 
 
 
 

540. All protozoans possess:

 
 
 
 

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

 
 
 
 

542. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Polystelic condition is found in:

 
 
 
 

547. What is a vector?

 
 
 
 

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

 
 
 
 

549. True sexuality is not found in:

 
 
 
 

550. Mycoplasma are:

 
 
 
 

551. Winged seeds are found in :

 
 
 
 

552. The group algae possesses representatives belonging to kingdom:

 
 
 
 

553. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

555. Most primitive embryophytes are placed in:

 
 
 
 

556. The zygospore in Rhizopus on germination forms:

 
 
 
 

557. The prothallus of fern is:

 
 
 
 

558. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

560. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

562. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

564. The most primitive vascular plants is:

 
 
 
 

565. Facultative parasite is:

 
 
 
 

566. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

572. The flagella of Chlamydomonas are:

 
 
 
 

573. 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:

 
 
 
 

574. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. In binomial system most of the words are:

 
 
 
 

579. Fruits are not found in:

 
 
 
 

580. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

586. Viroids have:

 
 
 
 

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

 
 
 
 

588. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

590. Which is an edible fungus?

 
 
 
 

591. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

592. The Rhizopus is:

 
 
 
 

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

 
 
 
 

594. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

596. The fungi are mostly:

 
 
 
 

597. Which lichen is called Reindeer moss?

 
 
 
 

598. Isomorphic type alternation of generation is found in:

 
 
 
 

599. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

604. Pteridophyta are also called:

 
 
 
 

605. Pollination in Cycas takes place by :

 
 
 
 

606. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

608. Acellular slime mold is/are:

 
 
 
 

609. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

611. Which of the following statement is correct?

 
 
 
 

612. Viruses have:

 
 
 
 

613. The plants of Funaria grow :

 
 
 
 

614. Red rot of sugarcane is caused by :

 
 
 
 

615. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. The lambda phase is a:

 
 
 
 

619. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

621. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. LSD is:

 
 
 
 

631. The smallest bacterium is:

 
 
 
 

632. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

634. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Etiology includes the study of :

 
 
 
 

638. The fern plant is:

 
 
 
 

639. Smut of maize is caused by :

 
 
 
 

640. To which class Riccia belongs :

 
 
 
 

641. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Which of the following is a monocot?

 
 
 
 

646. Ulothrix produces :

 
 
 
 

647. Quarantine regulations are concerned with:

 
 
 
 

648. Lichens are ecologically important because :

 
 
 
 

649. Ectocarpus produces:

 
 
 
 

650. Which organisms are the oldest life forms?

 
 
 
 

651. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Among the algae kelps are :

 
 
 
 

655. The sori in Dryopteris are found on:

 
 
 
 

656. What is special feature of fern archegonia?

 
 
 
 

657. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

659. What is streptomycin?

 
 
 
 

660. Common phycobiont in a lichen is :

 
 
 
 

661. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

663. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

665. Most appropriate word for protozoans is:

 
 
 
 

666. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

668. Vascular cryptogams is the term used for:

 
 
 
 

669. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

674. Which condition is found in Cycas?

 
 
 
 

675. Which of the following is a parasitic algae?

 
 
 
 

676. The chloroplast of Chlamydomonas are:

 
 
 
 

677. Club moss and Peat moss belong to:

 
 
 
 

678. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. The Rhizopus gametes are formed in:

 
 
 
 

682. In Cycas microsporangia are borne on:

 
 
 
 

683. Streptomyces falls under:

 
 
 
 

684. Which of the following is true for Selaginella?

 
 
 
 

685. E coli is a:

 
 
 
 

686. The first to isolate a plant virus was:

 
 
 
 

687. Centric discoid form of diatom is:

 
 
 
 

688. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Cyathia is characterized by:

 
 
 
 

696. Which is a redwood tree?

 
 
 
 

697. 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:

 
 
 
 

698. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

700. Fruits are not found in :

 
 
 
 

701. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

703. Viruses are considered to be:

 
 
 
 

704. The archegonia in Selaginella develop on:

 
 
 
 

705. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

710. Pasteurized milk is:

 
 
 
 

711. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

712. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

714. Which of the following have algal zone?

 
 
 
 

715. Yeast belongs to class:

 
 
 
 

716. Choose the correct statement about Spirogyra:

 
 
 
 

717. The two conjugating gametangia of Rhizopus are:

 
 
 
 

718. The source of litmus is :

 
 
 
 

719. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

721. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

731. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

733. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Rice, pea, potato are :

 
 
 
 

742. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Which of the following lichens is harmful?

 
 
 
 

750. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. What is the role of nitrifying bacteria?

 
 
 
 

759. Ethylene oxide is widely used to:

 
 
 
 

760. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

761. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

763. Multicellular and jacketed sex organs are found in :

 
 
 
 

764. Lichens reproduce by :

 
 
 
 

765. Downy mildew disease is caused by :

 
 
 
 

766. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

768. Each chloroplast in Spirogyra bears :

 
 
 
 

769. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

770. Which is a tautonym?

 
 
 
 

771. In Cycas which structure is equivalent to stamen?

 
 
 
 

772. Most of the algae are :

 
 
 
 

773. Mycoplasma is different from bacteria due to:

 
 
 
 

774. Little leaf disease of Brinjal is caused by:

 
 
 
 

775. Usually, bacteria reproduce by:

 
 
 
 

776. Spirogyra represents the :

 
 
 
 

777. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. The rhizoids of Funaria are :

 
 
 
 

785.

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

 
 
 
 

787. Infective part of virus was discovered by:

 
 
 
 

788. The alga, Spirogyra are found in :

 
 
 
 

789. Photosynthetic protists belong to:

 
 
 
 

790. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. The leaves of Funaria are :

 
 
 
 

794. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

796. Virus and bacteriophage are made-up of:

 
 
 
 

797. Pollination drop is:

 
 
 
 

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

 
 
 
 

799. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

804. Clostridium can:

 
 
 
 

805. Botulism is a:

 
 
 
 

806. Pollination in Pinus is :

 
 
 
 

807. Who discovered cyanophages?

 
 
 
 

808. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

810. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

812. In tracheophyta:

 
 
 
 

813. Diploxylic vascular bundles are found in:

 
 
 
 

814. Who discovered streptomycin?

 
 
 
 

815. . Tapetum develops in:

 
 
 
 

816. Ovules are not found enclosed in ovary of:

 
 
 
 

817. In Pteris, the roots are:

 
 
 
 

818. Number of capsomeres forming capsid of TMV is:

 
 
 
 

819. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

826. Fern prothallus produces:

 
 
 
 

827. Which among the following is a shrub?

 
 
 
 

828. Parmelia belongs to :

 
 
 
 

829. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

831. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. The development of Selaginella embryo is:

 
 
 
 

835. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

836. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

837. Streptomycin is obtained from:

 
 
 
 

838. 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?

 
 
 
 

839. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

849. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Bacteria growing on synthetic medium are called:

 
 
 
 

853. All algae have:

 
 
 
 

854. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

856. Mucilaginous canals in Cycas are found in :

 
 
 
 

857. The root nodules of leguminous plants contain:

 
 
 
 

858. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

860. What are plasmids?

 
 
 
 

861. The prothallus of fern represents the plant:

 
 
 
 

862. Viruses are commonly transmitted in plants through:

 
 
 
 

863. Interferon is a:

 
 
 
 

864. In Gymnocarpeae the fruiting body is :