Quiz_Random

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

 
 
 
 

2. Viruses are considered to be:

 
 
 
 

3. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

5. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

7. A gill of Agaricus:

 
 
 
 

8. Photosynthetic protists belong to:

 
 
 
 

9. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

11. Virus and bacteriophage are made-up of:

 
 
 
 

12. Bentham and Hooker placed gymnosperms:

 
 
 
 

13. Gametophyte is the main plant body in :

 
 
 
 

14. TMV was isolated in crystalline form by:

 
 
 
 

15. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

17. Who discovered cyanophages?

 
 
 
 

18. Broad spectrum antibiotic is, which:

 
 
 
 

19. Winged pollen grains are found in :

 
 
 
 

20. The chief characteristic of class Ascomycetes is:

 
 
 
 

21. Pollination in Pinus is :

 
 
 
 

22. Little leaf disease of Brinjal is caused by:

 
 
 
 

23. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

28. 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?

 
 
 
 

29. Pteridophyta are also called:

 
 
 
 

30. Which is absent from the xylem of Cycas?

 
 
 
 

31. Enteric bacteria are those bacteria that live:

 
 
 
 

32. Parmelia belongs to :

 
 
 
 

33. The plants of Funaria grow :

 
 
 
 

34. The leaves of Funaria are :

 
 
 
 

35. Spermatophyta are characterized by producing:

 
 
 
 

36. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

42. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

44. The group algae possesses representatives belonging to kingdom:

 
 
 
 

45. Wine turns sour because of:

 
 
 
 

46. Mycoplasma contains:

 
 
 
 

47. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Cycas is:

 
 
 
 

53. Embryo formation is not known in :

 
 
 
 

54. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Halophiles are the bacteria that require for growth:

 
 
 
 

59. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

60. Iodine is obtained from:

 
 
 
 

61. The fern plant is:

 
 
 
 

62. Which lichen is called Reindeer moss?

 
 
 
 

63. Ethylene oxide is widely used to:

 
 
 
 

64. Climbers are found in genus:

 
 
 
 

65. The mode of nutrition of bacteria is usually:

 
 
 
 

66. Which of the following are included in Tracheophyta?

 
 
 
 

67. What is the role of nitrifying bacteria?

 
 
 
 

68. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Generic name of mango is:

 
 
 
 

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

 
 
 
 

73. The DNA of E coli is:

 
 
 
 

74. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. The term stele was given by:

 
 
 
 

78. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

80. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

82. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Which of the following shows heterotrichous habit?

 
 
 
 

86. Centric discoid form of diatom is:

 
 
 
 

87. The rhizoids of Funaria are :

 
 
 
 

88. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. In Cycas which structure is equivalent to stamen?

 
 
 
 

92. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. The similarity between cyanobacteria and bacteria:

 
 
 
 

96. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

98. Typhoid in man is caused by:

 
 
 
 

99. The roots of Cycas are :

 
 
 
 

100. What is streptomycin?

 
 
 
 

101. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

103. Azolla and Salvinia both are:

 
 
 
 

104. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

109. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Pinus microsporophyll bears:

 
 
 
 

113. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Most of the algae are :

 
 
 
 

117. The chloroplast of Chlamydomonas are:

 
 
 
 

118. Facultative parasite is:

 
 
 
 

119. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Pneumonia is caused by:

 
 
 
 

123. Bacteria are found everywhere, except:

 
 
 
 

124. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

129. The microsporophylls on the cone of Cycas are :

 
 
 
 

130. The seedless plants which possess vascular tissues are:

 
 
 
 

131. The disease symptom necrosis refers to :

 
 
 
 

132. Mycoplasmas are not viruses in nature because:

 
 
 
 

133. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Which is not found in bacteria?

 
 
 
 

141. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Yeast grows more rapidly in:

 
 
 
 

147. Vegetative reproduction in Cycas is by means of :

 
 
 
 

148. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

150. Chemosynthetic bacteria are:

 
 
 
 

151. Ulothrix produces :

 
 
 
 

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

 
 
 
 

153. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. Cellular slime mold is:

 
 
 
 

162. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Acellular slime mold is/are:

 
 
 
 

169. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

178. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

180. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

182. Multicellular and jacketed sex organs are found in :

 
 
 
 

183. Which organisms are the oldest life forms?

 
 
 
 

184. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

186. How is moss different from fern?

 
 
 
 

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

 
 
 
 

188. Bacteria are considered to be plants because they:

 
 
 
 

189. Fruiting body of lichens is :

 
 
 
 

190. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. John Hutchinson divided dicots into two divisions:

 
 
 
 

194. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. The gametophyte of fern is as:

 
 
 
 

198. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

199. . Tapetum develops in:

 
 
 
 

200. 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:

 
 
 
 

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

 
 
 
 

202. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

207. Placenta in fern is:

 
 
 
 

208. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

210. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. In moss, sporogenous tissue arises from:

 
 
 
 

214. Iodine is obtained from :

 
 
 
 

215. Most primitive embryophytes are placed in:

 
 
 
 

216. Red rot of sugarcane is caused by:

 
 
 
 

217. Citrus canker is caused by :

 
 
 
 

218. Bacteria are placed under:

 
 
 
 

219. Clostridium can:

 
 
 
 

220. Meristele of fern is:

 
 
 
 

221. Woody climbers are known as :

 
 
 
 

222. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. The gametophyte of moss has distinct phases :

 
 
 
 

227. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

229. The fungi are mostly:

 
 
 
 

230. Viroids have:

 
 
 
 

231. Antibiotic has been extracted from :

 
 
 
 

232. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

234. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

243. Fruits are not found in :

 
 
 
 

244. The coralloid roots are :

 
 
 
 

245. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

246. Mucilaginous canals in Cycas are found in :

 
 
 
 

247. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Most of the lichens are composed of :

 
 
 
 

252. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

257. Bacteria which are spherical are called:

 
 
 
 

258. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

260. The archegonia of Selaginella are differentiated by:

 
 
 
 

261. 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:

 
 
 
 

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

 
 
 
 

263. Which of the following applies to Selaginella?

 
 
 
 

264. Ovary is absent in :

 
 
 
 

265. Psilotum is:

 
 
 
 

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

 
 
 
 

267. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

268. Select the wrong statement:

 
 
 
 

269. 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:

 
 
 
 

270. Green plants are classified as :

 
 
 
 

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

 
 
 
 

272. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

274. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

276. 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?

 
 
 
 

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

 
 
 
 

278. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

280. Where does meiosis occur in yeast?

 
 
 
 

281. Lichens form the first community in

 
 
 
 

282. Protozoans are considered animals because these are:

 
 
 
 

283. The chief characteristic of bryophyta is that :

 
 
 
 

284. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

295. Longest known virus is:

 
 
 
 

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

 
 
 
 

297. Spirogyra differs from moss protonema in having :

 
 
 
 

298. Spirogyra represents the :

 
 
 
 

299. The antibiotic is obtained from:

 
 
 
 

300. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

302. The most important property of yeast is:

 
 
 
 

303. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Pythium debaryanum is the causative agent of:

 
 
 
 

307. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

309. In moss, stomata are found:

 
 
 
 

310. Cycas is :

 
 
 
 

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

 
 
 
 

312. Fertility of the soil is increased by:

 
 
 
 

313. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. The Rhizopus is:

 
 
 
 

318. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

320. Which is a tautonym?

 
 
 
 

321. The chromosomal number in:

 
 
 
 

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

 
 
 
 

323. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

324. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. The phloem of vascular system of Cycas is :

 
 
 
 

332. 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:

 
 
 
 

333. Lichens are indicators of :

 
 
 
 

334. Gram stain is used to:

 
 
 
 

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

 
 
 
 

336. In Cycas:

 
 
 
 

337. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

339. Which is an exception to cell theory?

 
 
 
 

340. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

342. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

344. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

346. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Most primitive embryophytes are placed in :

 
 
 
 

356. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Water-net is the name of:

 
 
 
 

360. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Which of the following statements is not correct?

 
 
 
 

373. The mycelium of Rhizopus is:

 
 
 
 

374. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

376. Club moss is the common name of :

 
 
 
 

377. Rhizoids of Riccia are :

 
 
 
 

378. 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:

 
 
 
 

379. In a diplontic life cycle:

 
 
 
 

380. Saccharomyces is well known for:

 
 
 
 

381. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Bryophyta have been placed in cryptogams because:

 
 
 
 

385. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. In Pteris, the archegonia are present:

 
 
 
 

389. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. All protozoans possess:

 
 
 
 

394. Methanogens belong to:

 
 
 
 

395. In angiosperms double fertilization represents:

 
 
 
 

396. The largest alga is:

 
 
 
 

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

 
 
 
 

398.

399. Plasmids are:

 
 
 
 

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

 
 
 
 

401. An alga which is rich in proteins:

 
 
 
 

402. Metulae are found in:

 
 
 
 

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

 
 
 
 

404. Cycas revoluta is widely grown as :

 
 
 
 

405. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Special feature of pollen grains of Pinus is :

 
 
 
 

411. Cycas plant in appearance resembles :

 
 
 
 

412. Lichen show :

 
 
 
 

413. Leprosy is caused by:

 
 
 
 

414. Seeds are characteristically found in :

 
 
 
 

415. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

417.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Who named prion?

 
 
 
 

426. Sexual reproduction in Rhizopus is by:

 
 
 
 

427. 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:

 
 
 
 

428. All algae have:

 
 
 
 

429. Which of the following is sago palm?

 
 
 
 

430. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

432. Embryophyta includes:

 
 
 
 

433. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

442. Bacteria differ from viruses in being sensitive to:

 
 
 
 

443. In moss, sporophyte is formed on:

 
 
 
 

444. Some biologists have used the term Mycetozoa for:

 
 
 
 

445. Smallpox is caused by:

 
 
 
 

446. The lambda phase is a:

 
 
 
 

447. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

449. Club moss and Peat moss belong to:

 
 
 
 

450. The prothallus of fern is:

 
 
 
 

451. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

453. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

455. Vascular cryptogam is the term used for :

 
 
 
 

456. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

463. White rust of crucifers is caused by:

 
 
 
 

464. How a fern differs from a moss?

 
 
 
 

465. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

467. Simple polyembryony is found in :

 
 
 
 

468. The zygospore in Rhizopus on germination forms:

 
 
 
 

469. Endemic plants are characterised by their:

 
 
 
 

470. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

472. Ergot of rye is caused by:

 
 
 
 

473. Kuru, a human disease is caused by:

 
 
 
 

474. What are plasmids?

 
 
 
 

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

 
 
 
 

476. Genetic material of TMV is:

 
 
 
 

477. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Citrus canker is caused by:

 
 
 
 

482. Azolla growing in paddy fields helps in:

 
 
 
 

483. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

485. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

487. Transfusion tissue is present in the leaflet of:

 
 
 
 

488. Mycoplasma are:

 
 
 
 

489. Pasteurization of milk involves heating for:

 
 
 
 

490. Coenogamete is found in:

 
 
 
 

491. Fern plants are:

 
 
 
 

492. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

494. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

500. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

502. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Who discovered heterothallism in fungi?

 
 
 
 

507. Fern phloem lacks:

 
 
 
 

508. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

510. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

512. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

521. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. What is a vector?

 
 
 
 

525. Botulinum toxin effects:

 
 
 
 

526. Which fixes atmospheric nitrogen?

 
 
 
 

527. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

529. Most primitive group of vascular plants are:

 
 
 
 

530. LSD is:

 
 
 
 

531. The ferns are usually found:

 
 
 
 

532. In moss, peristomial teeth are:

 
 
 
 

533. The genetic material of poxvirus is:

 
 
 
 

534. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Photoautotrophic bacteria have:

 
 
 
 

538. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

539. Ergot is obtained from :

 
 
 
 

540. Ovules are not found enclosed in ovary of:

 
 
 
 

541. Which one of the following statement is wrong?

 
 
 
 

542. 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:

 
 
 
 

543. Viruses have:

 
 
 
 

544. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

548. Antibiotics cure the disease by:

 
 
 
 

549. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

551. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

553. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

555. In Funaria, calyptra is derived from :

 
 
 
 

556. Male gametes in Dryopteris are:

 
 
 
 

557. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

561. Rhizopus belongs to:

 
 
 
 

562. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

564. The root nodules of leguminous plants contain:

 
 
 
 

565. Spermatophyta are characterized by producing:

 
 
 
 

566. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

571. Lichens show :

 
 
 
 

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

 
 
 
 

573. Pseudomycelium is found in:

 
 
 
 

574. Saccharomyces is used in:

 
 
 
 

575. The zoospores of Ulothrix are :

 
 
 
 

576. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

578. Asexual reproductive body of Volvox is called:

 
 
 
 

579. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

585. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Which part of Riccia bears nurse cells?

 
 
 
 

589. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

590. The fungi used as food are:

 
 
 
 

591. Selaginella differs from Moss in having:

 
 
 
 

592. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Agar-agar is obtained from:

 
 
 
 

596. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

598. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

600. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

602. Which of the following lichens is harmful?

 
 
 
 

603. Maximum diversity of life forms occurs in :

 
 
 
 

604. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

606. Streptomycin is obtained from:

 
 
 
 

607. Protists which are diploid reproduce sexually by:

 
 
 
 

608. Funaria are commonly found :

 
 
 
 

609. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. Mixed cropping helps :

 
 
 
 

614. Cryptogams include :

 
 
 
 

615. The largest known bacterium is:

 
 
 
 

616. Chemosynthetic bacteria are:

 
 
 
 

617. Pasteur is famous for his:

 
 
 
 

618. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

623. Most appropriate word for protozoans is:

 
 
 
 

624. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Total parasites belong to:

 
 
 
 

628. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

630. Which of the following is a monocot?

 
 
 
 

631. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

633. In tracheophyta:

 
 
 
 

634. What is absent in Deuteromycetes?

 
 
 
 

635. Ovules are not found enclosed in ovary in :

 
 
 
 

636. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

638. Viruses are commonly transmitted in plants through:

 
 
 
 

639. Bacteria growing on synthetic medium are called:

 
 
 
 

640. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

642. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

647. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

649. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

651. Lichens are ecologically important because :

 
 
 
 

652. Fruits are not found in Cycas because:

 
 
 
 

653. The chloroplast in Ulothrix is :

 
 
 
 

654. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

656. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

658. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

660. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Which is the nuclear material in bacteria?

 
 
 
 

665. To which country Antony van Leeuwenhoek belong?

 
 
 
 

666. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

668. Cell walls of Gram-positive bacteria contain:

 
 
 
 

669. Red rot of sugarcane is caused by :

 
 
 
 

670. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

672. Synzoospore is produced in:

 
 
 
 

673. Penicillin was discovered by:

 
 
 
 

674. Reserve food in Euglena is:

 
 
 
 

675. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

680. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

681. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

683. Lichens reproduce by :

 
 
 
 

684. Zoogametes are not found in:

 
 
 
 

685. Diphtheria is caused by:

 
 
 
 

686. Which of the following is true for viruses?

 
 
 
 

687. Cap cells are found in the filament of:

 
 
 
 

688. Black rust of wheat is caused by:

 
 
 
 

689. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

691. One of the distinctive feature of Spirogyra is :

 
 
 
 

692. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

694. To which class Riccia belongs :

 
 
 
 

695. Ectocarpus produces:

 
 
 
 

696. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Cycas is similar to a mustard plant :

 
 
 
 

700. Which of the following are included in Tracheophyta?

 
 
 
 

701. Rhizopus and yeast are usually:

 
 
 
 

702. The gametophyte produced by apospory is :

 
 
 
 

703. Embryophyta includes :

 
 
 
 

704. In Pteris, the roots are:

 
 
 
 

705. Vascular tissue is found in :

 
 
 
 

706. Green plants are classified as:

 
 
 
 

707. Interferon is a:

 
 
 
 

708. Funaria is :

 
 
 
 

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

 
 
 
 

710. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

712. Which class of Protozoa includes all parasitic forms?

 
 
 
 

713. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

715. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Cleavage polyembryony is found in :

 
 
 
 

719. Germ theory of disease was proposed by:

 
 
 
 

720. The lichens growing on rocks are called :

 
 
 
 

721. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

723.

 

724.

725. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Quarantine regulations are concerned with:

 
 
 
 

732. Soil fertility is lost by the activities of:

 
 
 
 

733. Select the correct statement: (NEET 2016)

 
 
 
 

734. Reproduction in Rhizopus is:

 
 
 
 

735. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. The male gametes of Pinus are :

 
 
 
 

739. Which of the following does not contain chlorophyll?

 
 
 
 

740. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Which is a gametophytic tissue?

 
 
 
 

744. Pasteurized milk is:

 
 
 
 

745. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Mycoplasma was discovered by:

 
 
 
 

749. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Pollination drop is:

 
 
 
 

754. Virion refers to:

 
 
 
 

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

 
 
 
 

756. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

758. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

760. Infective part of virus was discovered by:

 
 
 
 

761. Vascular cryptogams is the term used for:

 
 
 
 

762. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

764. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

766. The disease apple scab is caused by:

 
 
 
 

767. Which of the following statement is correct?

 
 
 
 

768. Rice, pea, potato are :

 
 
 
 

769. Yeast is a source of:

 
 
 
 

770. Botulism is a:

 
 
 
 

771. Water-borne bacterial diseases are:

 
 
 
 

772. Which is a fungicide?

 
 
 
 

773. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Fairy ring is the name given to:

 
 
 
 

777. True sexuality is not found in:

 
 
 
 

778. The stele of Dryopteris is a:

 
 
 
 

779. Who discovered streptomycin?

 
 
 
 

780. Which of the following are absent in Mycoplasma?

 
 
 
 

781. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

782. In Gymnosperms endosperm is a:

 
 
 
 

783. Liverworts are included in :

 
 
 
 

784. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. In Herpes virus DNA is:

 
 
 
 

791. Black rust of wheat is caused by:

 
 
 
 

792. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

794. In Funaria :

 
 
 
 

795. The source of litmus is :

 
 
 
 

796. Which group of algae have an incipient nucleus?

 
 
 
 

797. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

799. Triple antigen injection or vaccine are for:

 
 
 
 

800. What is mycorrhiza?

 
 
 
 

801. The young leaves of Cycas have :

 
 
 
 

802. Spores of which plants have chloroplast:

 
 
 
 

803. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Which causes red tide?

 
 
 
 

808. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. 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?

 
 
 
 

815. Facultative saprophyte is:

 
 
 
 

816. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

818. Funaria can be differentiated from Cycas :

 
 
 
 

819. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Mycoplasma are sensitive to:

 
 
 
 

823. Ginkgo biloba is a:

 
 
 
 

824. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. In moss, calyptra is formed from:

 
 
 
 

829. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Cyathia is characterized by:

 
 
 
 

833. Absorptive nutrition is:

 
 
 
 

834. Acetobacter is useful in:

 
 
 
 

835. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

837. Majority of lichens are :

 
 
 
 

838. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Banana bunchy top is caused by :

 
 
 
 

842. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

844. In binomial system most of the words are:

 
 
 
 

845. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

847. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. The sporophyte of Riccia is :

 
 
 
 

851. Common phycobiont in a lichen is :

 
 
 
 

852. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

854. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

856. Some diseases caused by bacteria are:

 
 
 
 

857. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

859. The central part of Funaria axis is :

 
 
 
 

860. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

862. Male gametophyte of Selaginella is found:

 
 
 
 

863. Aflatoxin is produced as a product in :

 
 
 
 

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