Quiz_Random

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

 
 
 
 

2. Cleavage polyembryony is found in :

 
 
 
 

3. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

8. In Funaria :

 
 
 
 

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

 
 
 
 

10. Agar-agar is obtained from:

 
 
 
 

11. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. The Rhizopus gametes are formed in:

 
 
 
 

15. In moss, peristomial teeth are:

 
 
 
 

16. Proembryo in Pinus is :

 
 
 
 

17. Heterotrichous habit means :

 
 
 
 

18. In Cycas which structure is equivalent to stamen?

 
 
 
 

19. The lichens growing on rocks are called :

 
 
 
 

20. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

22. Which is not true for Escherichia coli?

 
 
 
 

23. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

24. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

26. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

28. Cycas is :

 
 
 
 

29. The fungi are usually:

 
 
 
 

30. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

32. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

34. Rice, pea, potato are :

 
 
 
 

35. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

37. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

39. Amoeba is a member of the phylum:

 
 
 
 

40. Lichens are ecologically important because :

 
 
 
 

41. Water-net is the name of:

 
 
 
 

42. Which of the following is true for viruses?

 
 
 
 

43. The order generally ends with:

 
 
 
 

44. What are plasmids?

 
 
 
 

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

 
 
 
 

46. In moss, calyptra is formed from:

 
 
 
 

47. Milk is converted to curd by:

 
 
 
 

48. Which causes red tide?

 
 
 
 

49. Reproduction in Cycas takes place by :

 
 
 
 

50. Pneumonia is caused by:

 
 
 
 

51. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

53. Sporophyte of fern is:

 
 
 
 

54. Lichens form the first community in

 
 
 
 

55. Pythium debaryanum is the causative agent of:

 
 
 
 

56. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Which organisms are the oldest life forms?

 
 
 
 

61. The gametophyte produced by apospory is :

 
 
 
 

62. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

63. The chief characteristic of bryophyta is that :

 
 
 
 

64. Pollination in Pinus is :

 
 
 
 

65. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

67. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Meristele of fern is:

 
 
 
 

71. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

76. Pasteurized milk is:

 
 
 
 

77. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Mycoplasma are sensitive to:

 
 
 
 

81. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

83. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

85. Rhizoids of Riccia are :

 
 
 
 

86. Sleeping sickness disease in man is caused by:

 
 
 
 

87. Which is a redwood tree?

 
 
 
 

88. Which is an exception to cell theory?

 
 
 
 

89. TMV was isolated in crystalline form by:

 
 
 
 

90. Pteridophytes are also known as :

 
 
 
 

91. Mycoplasma is different from bacteria due to:

 
 
 
 

92. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Which is a tautonym?

 
 
 
 

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

 
 
 
 

98. Azolla and Salvinia both are:

 
 
 
 

99. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

101. Indusium in Dryopteris is:

 
 
 
 

102. Ovules are not found enclosed in ovary of:

 
 
 
 

103. Which lichen is called Reindeer moss?

 
 
 
 

104. Enzymes are absent in:

 
 
 
 

105. Penicillin is obtained from:

 
 
 
 

106. Which of the following are included in Tracheophyta?

 
 
 
 

107. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Ergot of rye is caused by:

 
 
 
 

111. Cyanophage is a virus that attacks:

 
 
 
 

112. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Polystelic condition is found in:

 
 
 
 

118. 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?

 
 
 
 

119. Reserve food in Euglena is:

 
 
 
 

120.

121. The archegonia in Selaginella develop on:

 
 
 
 

122. 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?

 
 
 
 

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

 
 
 
 

124. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Fern prothallus produces:

 
 
 
 

128. Plasmids are:

 
 
 
 

129. What is streptomycin?

 
 
 
 

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

 
 
 
 

131. NBG of Lucknow is now named as:

 
 
 
 

132. To which class Riccia belongs :

 
 
 
 

133. In Selaginella, the microsporangia are:

 
 
 
 

134. All algae have:

 
 
 
 

135. Fern plants are:

 
 
 
 

136. Select the wrong statement:

 
 
 
 

137. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

138. The antibiotic is obtained from:

 
 
 
 

139. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. In dinoflagellates, the two flagella are:

 
 
 
 

145. Bacteria are considered to be plants because they:

 
 
 
 

146. Which of the following applies to Selaginella?

 
 
 
 

147. Viroids have:

 
 
 
 

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

 
 
 
 

149. An alga which is rich in proteins:

 
 
 
 

150. Roots are absent in :

 
 
 
 

151. Metulae are found in:

 
 
 
 

152. Who named prion?

 
 
 
 

153. Fruits are not found in Cycas because:

 
 
 
 

154. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Photoautotrophic bacteria have:

 
 
 
 

158. The alga, Spirogyra are found in :

 
 
 
 

159. Cocci types of bacteria are:

 
 
 
 

160. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

162. Botulinum toxin effects:

 
 
 
 

163. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Winged pollen grains are found in :

 
 
 
 

167. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Liverworts are included in :

 
 
 
 

175. Pollination in Cycas takes place by :

 
 
 
 

176. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

178. The largest alga is:

 
 
 
 

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

 
 
 
 

180. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Pasteurization of milk involves heating for:

 
 
 
 

184. The male gametes of Pinus are :

 
 
 
 

185. Soil fertility is lost by the activities of:

 
 
 
 

186. Lichens are pioneers of vegetation in a :

 
 
 
 

187. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

189. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Lichen show :

 
 
 
 

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

 
 
 
 

200. Which of the following is a monocot?

 
 
 
 

201. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Which of the following statement is correct?

 
 
 
 

209. The gametophyte of fern bears:

 
 
 
 

210. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Sporophyte of Funaria is :

 
 
 
 

214. Coenogamete is found in:

 
 
 
 

215. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. . Tapetum develops in:

 
 
 
 

220. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

222. Diphtheria is caused by:

 
 
 
 

223. Endemic plants are characterised by their:

 
 
 
 

224. The group algae possesses representatives belonging to kingdom:

 
 
 
 

225. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

227. The leafy fern plant represents the:

 
 
 
 

228. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

230. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

232. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

233. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

235. Pseudomycelium is found in:

 
 
 
 

236. 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:

 
 
 
 

237. Saccharomyces is used in:

 
 
 
 

238. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Which one of the following is a monocot?

 
 
 
 

243. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

245. The coralloid roots are :

 
 
 
 

246. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

248. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

249. Synzoospore is produced in:

 
 
 
 

250. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Spores of which plants have chloroplast:

 
 
 
 

266. The megaspore of Selaginella on germination produces:

 
 
 
 

267. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

273. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Siphonogamy is found in:

 
 
 
 

285. Majority of lichens are :

 
 
 
 

286. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

291. The chloroplast of Chlamydomonas are:

 
 
 
 

292. In Cycas microsporangia are borne on:

 
 
 
 

293. The gametophyte of fern is as:

 
 
 
 

294. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

296. Green plants are classified as :

 
 
 
 

297. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

299. The prothallus of fern represents the plant:

 
 
 
 

300. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Each chloroplast in Spirogyra bears :

 
 
 
 

304. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

305. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Male gametes in Dryopteris are:

 
 
 
 

319. An Hfr bacterium is one that contains:

 
 
 
 

320. Oswald Tippo’s classification was based on :

 
 
 
 

321. Club moss is the common name of :

 
 
 
 

322. In Pteris, the archegonia are present:

 
 
 
 

323. The truncated cone of HIV consists of:

 
 
 
 

324. The largest known bacterium is:

 
 
 
 

325. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Bacteria which are spherical are called:

 
 
 
 

336. Vascular tissue is found in :

 
 
 
 

337. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

339. Facultative parasite is:

 
 
 
 

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

 
 
 
 

341. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

343. Late blight of potato is caused by:

 
 
 
 

344. Heterocysts are found in :

 
 
 
 

345. Total parasites belong to:

 
 
 
 

346. Which is an edible fungus?

 
 
 
 

347. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

349.

 

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

 
 
 
 

351. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

353. The sporangium of fern contains nearly:

 
 
 
 

354. Bacteria are found everywhere, except:

 
 
 
 

355. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

357. Simple polyembryony is found in :

 
 
 
 

358. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The smallest bacterium is:

 
 
 
 

365. Genetic material of TMV is:

 
 
 
 

366. Heterospory and ligulate leaves are a feature of:

 
 
 
 

367. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Botulism is a:

 
 
 
 

373. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. The disease symptom necrosis refers to :

 
 
 
 

383. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Pinus is:

 
 
 
 

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

 
 
 
 

388. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Aflatoxin is produced by:

 
 
 
 

392. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

394. To which country Antony van Leeuwenhoek belong?

 
 
 
 

395. Ovules are not found enclosed in ovary in :

 
 
 
 

396. In a diplontic life cycle:

 
 
 
 

397. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

399. Which statement is wrong in regard to bacteria?

 
 
 
 

400. Redness of red sea is due to :

 
 
 
 

401. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

403. Desired type of Cycas can be grown by:

 
 
 
 

404. Ovary is absent in :

 
 
 
 

405. Embryo formation is not known in :

 
 
 
 

406. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

408. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

413. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. Economic importance of bacteria lies in their being:

 
 
 
 

418. In moss, sporophyte is formed on:

 
 
 
 

419. Woody climbers are known as :

 
 
 
 

420. Which fixes atmospheric nitrogen?

 
 
 
 

421. E coli is a:

 
 
 
 

422. The mode of nutrition of bacteria is usually:

 
 
 
 

423. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Lichens show :

 
 
 
 

429. Viruses have:

 
 
 
 

430. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

432. The chromosomal number in:

 
 
 
 

433. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

439. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

441. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

443. Pinus gerardiana is :

 
 
 
 

444. The first to isolate a plant virus was:

 
 
 
 

445. Germination of the seed of Pinus is :

 
 
 
 

446. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

448. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Which of the following is sago palm?

 
 
 
 

452. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

457. In angiosperms double fertilization represents:

 
 
 
 

458. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

460. In Cycas the fertilization is:

 
 
 
 

461. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

463. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

465. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

467. Viruses are considered to be:

 
 
 
 

468. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

470. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Asexual reproductive body of Volvox is called:

 
 
 
 

474. Bryophyta have been placed in cryptogams because:

 
 
 
 

475. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

477. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. True sexuality is not found in:

 
 
 
 

481. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Halophiles are the bacteria that require for growth:

 
 
 
 

485. How is moss different from fern?

 
 
 
 

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

 
 
 
 

487. Spirogyra differs from moss protonema in having :

 
 
 
 

488. The mycelium of Rhizopus is:

 
 
 
 

489. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. In moss, reduction division occurs in :

 
 
 
 

494. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Spirogyra represents the :

 
 
 
 

498.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. How a fern differs from a moss?

 
 
 
 

503. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Red rot of sugarcane is caused by :

 
 
 
 

508. Lichens reproduce by :

 
 
 
 

509. Which of the following is a heterosporous pteridophyte?

 
 
 
 

510. What is absent in Deuteromycetes?

 
 
 
 

511. The tree fern is:

 
 
 
 

512. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Absorptive nutrition is:

 
 
 
 

516. Yeast grows more rapidly in:

 
 
 
 

517. Some bacteria cannot be killed easily because of:

 
 
 
 

518. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

520. The sori in Dryopteris are found on:

 
 
 
 

521. The phloem of vascular system of Cycas is :

 
 
 
 

522. LSD is:

 
 
 
 

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

 
 
 
 

524. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

532. Methanogens belong to:

 
 
 
 

533. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

539. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

541. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

543. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Fruiting body of lichens is :

 
 
 
 

547. Most primitive group of vascular plants are:

 
 
 
 

548. Leprosy is caused by:

 
 
 
 

549. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

550. Azolla growing in paddy fields helps in:

 
 
 
 

551. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

553. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

555. Pollination drop is:

 
 
 
 

556. The sporangiophores in Rhizopus are:

 
 
 
 

557. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

559. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Disease resistant plant varieties can be produced by :

 
 
 
 

563. Streptomyces falls under:

 
 
 
 

564. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

566. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

568. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

570. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

572. Nannandria are:

 
 
 
 

573. Nitrifying bacteria play an important role by converting:

 
 
 
 

574. Who discovered streptomycin?

 
 
 
 

575. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

577. Mycoplasma are:

 
 
 
 

578. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

580. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Bacteria were first discovered by:

 
 
 
 

586. Banana bunchy top is caused by :

 
 
 
 

587. The zygospore in Rhizopus on germination forms:

 
 
 
 

588. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

590. The upper region of moss capsule is :

 
 
 
 

591. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

593. Cycas revoluta is widely grown as :

 
 
 
 

594. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Diploxylic vascular bundles are found in:

 
 
 
 

599. Funaria is a Bryophyta because :

 
 
 
 

600. In a bacteriophage, DNA is present in:

 
 
 
 

601. Ergot is obtained from :

 
 
 
 

602. Which part of Riccia bears nurse cells?

 
 
 
 

603. Who among the following discovered virus?

 
 
 
 

604. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

606. Citrus canker is caused by:

 
 
 
 

607. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

608. The spur of Pinus roxburghii has :

 
 
 
 

609. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614.

615. Ovary is absent in:

 
 
 
 

616. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

618. Late blight of potato is caused by :

 
 
 
 

619. The fern plant is:

 
 
 
 

620. Who discovered heterothallism in fungi?

 
 
 
 

621. The spermatozoids of Cycas are :

 
 
 
 

622. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

624. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Protists which are diploid reproduce sexually by:

 
 
 
 

632. The DNA of E coli is:

 
 
 
 

633. Pinus microsporophyll bears:

 
 
 
 

634. Vegetative reproduction in Cycas is by means of :

 
 
 
 

635. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

637. Green plants are classified as:

 
 
 
 

638. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

640. The root nodules of leguminous plants contain:

 
 
 
 

641. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

643. First animal pathogenic virus was discovered by:

 
 
 
 

644. Funaria is :

 
 
 
 

645. Cryptogams include :

 
 
 
 

646. Mostly type of zygospore in Ulothrix is:

 
 
 
 

647. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. In moss, sporogenous tissue arises from:

 
 
 
 

652. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

654. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

656. Most primitive embryophytes are placed in:

 
 
 
 

657. The ascus of yeast contains:

 
 
 
 

658. The leaves of Funaria are :

 
 
 
 

659. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

660. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

665. The nucleus of bacteria is:

 
 
 
 

666. Mixed cropping helps :

 
 
 
 

667. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

669. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. John Hutchinson divided dicots into two divisions:

 
 
 
 

673. Smallpox is caused by:

 
 
 
 

674. Embryophyta includes :

 
 
 
 

675. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

677. Usually, bacteria reproduce by:

 
 
 
 

678. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

680. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

682. Interferon is a:

 
 
 
 

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

 
 
 
 

684. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

686. Etiology includes the study of :

 
 
 
 

687. The young leaves of Cycas have :

 
 
 
 

688. Transfusion tissue is present in the leaflet of:

 
 
 
 

689. Which of the following does not contain chlorophyll?

 
 
 
 

690. In Cycas:

 
 
 
 

691. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Enteric bacteria are those bacteria that live:

 
 
 
 

696. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

701. The archegonia of Selaginella are differentiated by:

 
 
 
 

702. The fungi are mostly:

 
 
 
 

703. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

705. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Special feature of pollen grains of Pinus is :

 
 
 
 

710. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Which of the following are included in Tracheophyta?

 
 
 
 

717. Select the wrong statement:

 
 
 
 

718. The two conjugating gametangia of Rhizopus are:

 
 
 
 

719. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

721. 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:

 
 
 
 

722. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Which is absent from the xylem of Cycas?

 
 
 
 

726. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Rhizopus and yeast are usually:

 
 
 
 

730. The orders generally have the uniform endings:

 
 
 
 

731. Mycoplasmas are not viruses in nature because:

 
 
 
 

732. Black rust of wheat is caused by:

 
 
 
 

733. Anoxygenic photosynthesis occurs in:

 
 
 
 

734. Zoogametes are not found in:

 
 
 
 

735. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. In tracheophyta:

 
 
 
 

739. Where does meiosis occur in yeast?

 
 
 
 

740. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Nitrogen-fixing bacteria may be located:

 
 
 
 

744. The sexual reproductive organs in Rhizopus are:

 
 
 
 

745. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

747. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

749. Photosynthetic bacteria have:

 
 
 
 

750. The zoospores of Ulothrix are :

 
 
 
 

751. Germ theory of disease was proposed by:

 
 
 
 

752. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

754. The term stele was given by:

 
 
 
 

755. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

757. Which of the following is true for Selaginella?

 
 
 
 

758. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. The ferns are usually found:

 
 
 
 

767. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

769. The seedless plants which possess vascular tissues are:

 
 
 
 

770. Spermatophyta are characterized by producing:

 
 
 
 

771. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

773. Ginkgo biloba is a:

 
 
 
 

774. Most primitive embryophytes are placed in :

 
 
 
 

775. Reproduction in Rhizopus is:

 
 
 
 

776. In Funaria, calyptra is derived from :

 
 
 
 

777. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

779. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

781. Aflatoxin is produced as a product in :

 
 
 
 

782. In Gymnosperms endosperm is a:

 
 
 
 

783. The sporophyte of Riccia is represented by :

 
 
 
 

784. The Rhizopus is:

 
 
 
 

785. Sexual reproduction in Rhizopus is by:

 
 
 
 

786. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

788. Generic name of mango is:

 
 
 
 

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

 
 
 
 

790. The chloroplast in Ulothrix is :

 
 
 
 

791. In moss, stomata are found:

 
 
 
 

792. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

794. Small epidermal swellings due to infection are called :

 
 
 
 

795. Helotism word is used for the symbiosis between :

 
 
 
 

796. Cap cells are found in the filament of:

 
 
 
 

797. Which group of algae have an incipient nucleus?

 
 
 
 

798. Spermatophyta are characterized by producing:

 
 
 
 

799. The central part of Funaria axis is :

 
 
 
 

800. Funaria is :

 
 
 
 

801. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Chemosynthetic bacteria are:

 
 
 
 

808. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

810. Cycas is similar to a mustard plant :

 
 
 
 

811. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

813. Circular DNA is seen in:

 
 
 
 

814. The smallest unit of classification is:

 
 
 
 

815. Sometimes the bacterial cell is enclosed in:

 
 
 
 

816. Why is Cycas called a living fossil?

 
 
 
 

817. Citrus canker is caused by :

 
 
 
 

818. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

819. Pteridophyta are also called:

 
 
 
 

820. All protozoans possess:

 
 
 
 

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

 
 
 
 

822. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Lichens reproduce by :

 
 
 
 

826. Vascular cryptogam is the term used for :

 
 
 
 

827. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

828. The source of litmus is :

 
 
 
 

829. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. What are Cyanobacteria?

 
 
 
 

840. The lambda phase is a:

 
 
 
 

841. Iodine is obtained from :

 
 
 
 

842. Seeds are characteristically found in:

 
 
 
 

843. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

845. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

847. Streptomycin is obtained from:

 
 
 
 

848. In binomial system most of the words are:

 
 
 
 

849. Ethylene oxide is widely used to:

 
 
 
 

850. White rust of crucifers is caused by:

 
 
 
 

851. Yeast is a source of:

 
 
 
 

852. Which of the following shows heterotrichous habit?

 
 
 
 

853. Rhizopus belongs to:

 
 
 
 

854. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

855. Psilotum is:

 
 
 
 

856. Bacteria growing on synthetic medium are called:

 
 
 
 

857. Fruits are not found in :

 
 
 
 

858. Typhoid in man is caused by:

 
 
 
 

859. The fungi used as food are:

 
 
 
 

860. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

862. The photosynthetic protists are:

 
 
 
 

863. The stele of Dryopteris is a:

 
 
 
 

864. Winged seeds are found in :