Quiz_Random

1. Absorptive nutrition is:

 
 
 
 

2. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

4. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Most primitive embryophytes are placed in :

 
 
 
 

21. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

23. The chief characteristic of class Ascomycetes is:

 
 
 
 

24. The leaves of Funaria are :

 
 
 
 

25. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

27. Which bacteria convert nitrate into nitrogen?

 
 
 
 

28. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Mycoplasma contains:

 
 
 
 

32. Reserve food in Euglena is:

 
 
 
 

33. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

38. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

47. Pseudomycelium is found in:

 
 
 
 

48. In Selaginella, the microsporangia are:

 
 
 
 

49. 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?

 
 
 
 

50. Ulothrix produces :

 
 
 
 

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

 
 
 
 

52. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. A gill of Agaricus:

 
 
 
 

58. 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:

 
 
 
 

59. Which of the following is true for viruses?

 
 
 
 

60. The fungi are usually:

 
 
 
 

61. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Pasteurized milk is:

 
 
 
 

67. Infective part of virus was discovered by:

 
 
 
 

68. E coli is a:

 
 
 
 

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

 
 
 
 

70. Which is the nuclear material in bacteria?

 
 
 
 

71. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

73. Botulism is a:

 
 
 
 

74. Nannandria are:

 
 
 
 

75. Bacteriophage consists of:

 
 
 
 

76. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Viruses are commonly transmitted in plants through:

 
 
 
 

80. Pythium debaryanum is the causative agent of:

 
 
 
 

81. Which of the following are included in Tracheophyta?

 
 
 
 

82. Synzoospore is produced in:

 
 
 
 

83. The development of Selaginella embryo is:

 
 
 
 

84. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

86. What is special feature of fern archegonia?

 
 
 
 

87. Most primitive group of vascular plants are:

 
 
 
 

88. Redness of red sea is due to :

 
 
 
 

89. 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:

 
 
 
 

90. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

92. Placenta in fern is:

 
 
 
 

93. The lambda phase is a:

 
 
 
 

94. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The order generally ends with:

 
 
 
 

99. The leaves of Funaria are :

 
 
 
 

100. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

101. Lichens show :

 
 
 
 

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

 
 
 
 

103. The sporangium of fern contains nearly:

 
 
 
 

104. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

106. Cycas is :

 
 
 
 

107. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. True sexuality is not found in:

 
 
 
 

114. In Pteris, the roots are:

 
 
 
 

115. Pinus gerardiana is :

 
 
 
 

116. Rhizophore of Selaginella is:

 
 
 
 

117. The flagella of Chlamydomonas are:

 
 
 
 

118. Protistan algae obtain their food as:

 
 
 
 

119. Which of the following lichens is harmful?

 
 
 
 

120. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

125. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Helotism word is used for the symbiosis between :

 
 
 
 

129. 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?

 
 
 
 

130. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

132. Smallpox is caused by:

 
 
 
 

133. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

135. What is a vector?

 
 
 
 

136. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Germ theory of disease was proposed by:

 
 
 
 

141. Fertility of the soil is increased by:

 
 
 
 

142. The gametophyte of fern is as:

 
 
 
 

143. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Who named prion?

 
 
 
 

149. Select the wrong statement:

 
 
 
 

150. The two conjugating gametangia of Rhizopus are:

 
 
 
 

151. Rhizopus and yeast are usually:

 
 
 
 

152. Who discovered heterothallism in fungi?

 
 
 
 

153. Ovules are not found enclosed in ovary in :

 
 
 
 

154. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Zoogametes are not found in:

 
 
 
 

158. Among the algae kelps are :

 
 
 
 

159. The genetic material of poxvirus is:

 
 
 
 

160. Photosynthetic bacteria have:

 
 
 
 

161. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

163. The chromosomal number in:

 
 
 
 

164. The smallest bacterium is:

 
 
 
 

165. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. The smallest unit of classification is:

 
 
 
 

169. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

171. Cycas plant in appearance resembles :

 
 
 
 

172. Spores of which plants have chloroplast:

 
 
 
 

173. Winged seeds are found in :

 
 
 
 

174. The fungi are mostly:

 
 
 
 

175. Red rot of sugarcane is caused by :

 
 
 
 

176. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. The ascus of yeast contains:

 
 
 
 

181. The antherozoids of Funaria are :

 
 
 
 

182. Indusium in Dryopteris is:

 
 
 
 

183. Some diseases caused by bacteria are:

 
 
 
 

184. Asexual reproductive body of Volvox is called:

 
 
 
 

185. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Which of the following have a prokaryotic cell?

 
 
 
 

189. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Green plants are classified as :

 
 
 
 

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

 
 
 
 

194. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

196. Parmelia belongs to :

 
 
 
 

197. The chloroplast in Ulothrix is :

 
 
 
 

198. Pollination in Pinus is :

 
 
 
 

199. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

203. Most resistant spore in bacteria is:

 
 
 
 

204. Most primitive kind of flower is represented by:

 
 
 
 

205. The term stele was given by:

 
 
 
 

206. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

208. Citrus canker is caused by:

 
 
 
 

209. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Common phycobiont in a lichen is :

 
 
 
 

214. In moss, reduction division occurs in :

 
 
 
 

215. The mycelium of Rhizopus is:

 
 
 
 

216. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

217. Which statement is wrong in regard to bacteria?

 
 
 
 

218. Oswald Tippo’s classification was based on :

 
 
 
 

219. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

221. Bacteria were first discovered by:

 
 
 
 

222. 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:

 
 
 
 

223. Pinus is:

 
 
 
 

224. Bacteria which are spherical are called:

 
 
 
 

225. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Lichens reproduce by :

 
 
 
 

230. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. Chemosynthetic bacteria are:

 
 
 
 

235. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

237. Heterotrichous habit means :

 
 
 
 

238. Downy mildew disease is caused by :

 
 
 
 

239. Rhizopus belongs to:

 
 
 
 

240. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

244. In Cycas:

 
 
 
 

245. Heterocysts are found in :

 
 
 
 

246. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

251. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Sporophyte of fern is:

 
 
 
 

255. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

257. Quarantine regulations are concerned with:

 
 
 
 

258. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. 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:

 
 
 
 

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

 
 
 
 

263. Bacteria are considered to be plants because they:

 
 
 
 

264. Tautonyms are illegitimate in:

 
 
 
 

265. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

270. Fruits are not found in:

 
 
 
 

271. The most important property of yeast is:

 
 
 
 

272. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Which one of the following is a monocot?

 
 
 
 

276. Lichens are ecologically important because :

 
 
 
 

277. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Which of the following is sago palm?

 
 
 
 

281. Total parasites belong to:

 
 
 
 

282. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

284. Red rot of sugarcane is caused by:

 
 
 
 

285. How is moss different from fern?

 
 
 
 

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

 
 
 
 

287. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

289. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

291. Viruses have:

 
 
 
 

292. Gymnosperms could also be called as:

 
 
 
 

293. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

295. Funaria is a Bryophyta because :

 
 
 
 

296. Centric discoid form of diatom is:

 
 
 
 

297. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Meristele of fern is:

 
 
 
 

301. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

303. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

305. The source of litmus is :

 
 
 
 

306. Sexual reproduction in Rhizopus is by:

 
 
 
 

307. Most appropriate word for protozoans is:

 
 
 
 

308. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

310. Lichens are indicators of :

 
 
 
 

311. Bivalved siliceous shell or frustule occur in:

 
 
 
 

312. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

314. Interferon is a:

 
 
 
 

315.

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

 
 
 
 

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

 
 
 
 

318. The roots of Cycas are :

 
 
 
 

319. Which of the following does not contain chlorophyll?

 
 
 
 

320. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

322. Metulae are found in:

 
 
 
 

323. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

325. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Ergot is obtained from :

 
 
 
 

329. One of the distinctive feature of Spirogyra is :

 
 
 
 

330. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

331. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Usually, bacteria reproduce by:

 
 
 
 

342. Rhizoids of Riccia are :

 
 
 
 

343. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

345. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Each chloroplast in Spirogyra bears :

 
 
 
 

349. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

350. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

352. Most primitive embryophytes are placed in:

 
 
 
 

353. Iodine is obtained from :

 
 
 
 

354. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Black rust of wheat is caused by:

 
 
 
 

358. Who discovered cyanophages?

 
 
 
 

359.

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

 
 
 
 

361. Chemosynthetic bacteria are:

 
 
 
 

362. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

364. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

365. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

367. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

375. Citrus canker is caused by :

 
 
 
 

376. Which of the following are included in Tracheophyta?

 
 
 
 

377. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

379. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

381. Polystelic condition is found in:

 
 
 
 

382. The mode of nutrition of bacteria is usually:

 
 
 
 

383. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

389. Vascular cryptogams is the term used for:

 
 
 
 

390. In Cycas the fertilization is:

 
 
 
 

391. The fungi used as food are:

 
 
 
 

392. Vascular cryptogam is the term used for :

 
 
 
 

393. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

395. Lichen show :

 
 
 
 

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

 
 
 
 

397. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

399. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

404. Acetobacter is useful in:

 
 
 
 

405. Simple polyembryony is found in :

 
 
 
 

406. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

407. Meiosis in Ulothrix takes place:

 
 
 
 

408. The male gametes of Pinus are :

 
 
 
 

409. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

411. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Water-borne bacterial diseases are:

 
 
 
 

415. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

417. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

419. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

421. Mostly type of zygospore in Ulothrix is:

 
 
 
 

422. Chief constituents of bordeaux mixture are :

 
 
 
 

423. Funaria is :

 
 
 
 

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

 
 
 
 

425. Penicillin is obtained from:

 
 
 
 

426. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

428. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

433. Broad spectrum antibiotic is, which:

 
 
 
 

434. Bryophyta have been placed in cryptogams because:

 
 
 
 

435. Sleeping sickness disease in man is caused by:

 
 
 
 

436. The chief characteristic of bryophyta is that :

 
 
 
 

437. Yeast is a source of:

 
 
 
 

438. Some bacteria cannot be killed easily because of:

 
 
 
 

439. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

441. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

443. Bacteria differ from viruses in being sensitive to:

 
 
 
 

444. The gametophyte produced by apospory is :

 
 
 
 

445. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

447. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. An alga which is rich in proteins:

 
 
 
 

451. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

453. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

455. Enzymes are absent in:

 
 
 
 

456. Embryophyta includes :

 
 
 
 

457. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. The development of sporangium in Selaginella is:

 
 
 
 

461. Azolla and Salvinia both are:

 
 
 
 

462. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. John Hutchinson divided dicots into two divisions:

 
 
 
 

470. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

472. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

474. Majority of lichens are :

 
 
 
 

475. Fern prothallus is:

 
 
 
 

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

 
 
 
 

477. The sori in Dryopteris are found on:

 
 
 
 

478. What is mycorrhiza?

 
 
 
 

479. Which fixes atmospheric nitrogen?

 
 
 
 

480. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

482. In a diplontic life cycle:

 
 
 
 

483. The disease apple scab is caused by:

 
 
 
 

484. The tree fern is:

 
 
 
 

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

 
 
 
 

486. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Which of the following is a parasitic algae?

 
 
 
 

490. The prothallus of fern is:

 
 
 
 

491. Little leaf disease of Brinjal is caused by:

 
 
 
 

492. Most of the algae are :

 
 
 
 

493. Halophiles are the bacteria that require for growth:

 
 
 
 

494. The tallest moss in the world is :

 
 
 
 

495. Spermatophyta are characterized by producing:

 
 
 
 

496. Viroids have:

 
 
 
 

497. Pneumonia is caused by:

 
 
 
 

498. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

500. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

502. The teeth of peristome of Funaria are :

 
 
 
 

503. Funaria is :

 
 
 
 

504. In Cycas which structure is equivalent to stamen?

 
 
 
 

505. Leaf spot of groundnut is caused by :

 
 
 
 

506. LSD is:

 
 
 
 

507. The sporophyte of Riccia is represented by :

 
 
 
 

508. Mycoplasma are:

 
 
 
 

509. Multicellular and jacketed sex organs are found in :

 
 
 
 

510. Which of the following have algal zone?

 
 
 
 

511. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

513. Which group of algae have an incipient nucleus?

 
 
 
 

514. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Saccharomyces ludwigii ascus produces:

 
 
 
 

526. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Why is Cycas called a living fossil?

 
 
 
 

537. In moss, sporophyte is formed on:

 
 
 
 

538. Which of the following shows heterotrichous habit?

 
 
 
 

539. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

544. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

546. Cryptogams include :

 
 
 
 

547. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

549. Typhoid in man is caused by:

 
 
 
 

550. In moss, conducting tissue is made up of

 
 
 
 

551. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

553. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

555. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

557. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

559. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

561. Funaria can be differentiated from Cycas :

 
 
 
 

562. Protists which are diploid reproduce sexually by:

 
 
 
 

563. The archegonia in Selaginella develop on:

 
 
 
 

564. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. The Rhizopus is:

 
 
 
 

569. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

571. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

573. Vegetative reproduction in Cycas is by means of :

 
 
 
 

574. Which is absent from the xylem of Cycas?

 
 
 
 

575. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

577. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

579. In Cycas microsporangia are borne on:

 
 
 
 

580. Lichens form the first community in

 
 
 
 

581. What is streptomycin?

 
 
 
 

582. To which country Antony van Leeuwenhoek belong?

 
 
 
 

583. Streptomyces falls under:

 
 
 
 

584. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

586. Which causes red tide?

 
 
 
 

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

 
 
 
 

588. Which one of the following statement is wrong?

 
 
 
 

589. 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:

 
 
 
 

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

 
 
 
 

591. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

593. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

595. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

596. Ectocarpus produces:

 
 
 
 

597. The largest alga is:

 
 
 
 

598.

 

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

 
 
 
 

600. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

602. Which of the following is true for Selaginella?

 
 
 
 

603. Nitrogen-fixing bacteria may be located:

 
 
 
 

604. Economic importance of bacteria lies in their being:

 
 
 
 

605. Clostridium can:

 
 
 
 

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

 
 
 
 

607. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

614. The spur of Pinus roxburghii has :

 
 
 
 

615. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

617. Botulinum toxin effects:

 
 
 
 

618. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Funaria are commonly found :

 
 
 
 

622. Leprosy is caused by:

 
 
 
 

623. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Fern plants are:

 
 
 
 

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

 
 
 
 

628. Oswald Tippo’s classification is:

 
 
 
 

629. Bacteria growing on synthetic medium are called:

 
 
 
 

630. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

636. 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:

 
 
 
 

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

 
 
 
 

638. Water bloom is generally caused by :

 
 
 
 

639. Which condition is found in Cycas?

 
 
 
 

640. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

642. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

647. Select the wrong statement:

 
 
 
 

648. Lichens are the indicator of pollution :

 
 
 
 

649. The rhizoids of Funaria are :

 
 
 
 

650. Who discovered streptomycin?

 
 
 
 

651. Small epidermal swellings due to infection are called :

 
 
 
 

652. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657.

658. Protozoans are considered animals because these are:

 
 
 
 

659. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Siphonogamy is found in:

 
 
 
 

663. In Gymnocarpeae the fruiting body is :

 
 
 
 

664. The sporangia of Selaginella are attached:

 
 
 
 

665. Which is a fungicide?

 
 
 
 

666. Ethylene oxide is widely used to:

 
 
 
 

667. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Which is a tautonym?

 
 
 
 

671. 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:

 
 
 
 

672. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

674. Longest known virus is:

 
 
 
 

675. The middle sterile part of capsule is called:

 
 
 
 

676. Disease resistant plant varieties can be produced by :

 
 
 
 

677. Sometimes the bacterial cell is enclosed in:

 
 
 
 

678. The ferns are usually found:

 
 
 
 

679. Male gametophyte of Selaginella is found:

 
 
 
 

680. Iodine is obtained from:

 
 
 
 

681. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Gram stain is used to:

 
 
 
 

689. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Choose the correct statement about Spirogyra:

 
 
 
 

700. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. The seedless plants which possess vascular tissues are:

 
 
 
 

704. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

706. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

708. Sexual reproduction of lichen is due to :

 
 
 
 

709. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

711. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. In binomial system most of the words are:

 
 
 
 

716. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

718. The largest known bacterium is:

 
 
 
 

719. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

721. Ovary is absent in:

 
 
 
 

722. Water-net is the name of:

 
 
 
 

723. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

728. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Generic name of mango is:

 
 
 
 

732. Selaginella differs from Moss in having:

 
 
 
 

733. Wine turns sour because of:

 
 
 
 

734. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

736. The sporophyte of Riccia is :

 
 
 
 

737. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

739. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

741. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

743. Ovules are not found enclosed in ovary of:

 
 
 
 

744. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

745. Red rot of sugarcane is caused by :

 
 
 
 

746. Virion refers to:

 
 
 
 

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

 
 
 
 

748. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

750. Fruiting body of lichens is :

 
 
 
 

751. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Cycas is:

 
 
 
 

755. Which class of Protozoa includes all parasitic forms?

 
 
 
 

756. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

758. Psilotum is:

 
 
 
 

759. Most common type of conjugation in Spirogyra is :

 
 
 
 

760. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. The vascular bundles of Cycas stem are :

 
 
 
 

767. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

769. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

771. The megaspore of Selaginella on germination produces:

 
 
 
 

772. Ovules are not found enclosed in ovary in :

 
 
 
 

773. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

775. Linnaeus is credited with introducing:

 
 
 
 

776. In a bacteriophage, DNA is present in:

 
 
 
 

777. In tracheophyta:

 
 
 
 

778. Saccharomyces is used in:

 
 
 
 

779. Woody climbers are known as :

 
 
 
 

780. Mycoplasmas are not viruses in nature because:

 
 
 
 

781. The gametophyte of fern bears:

 
 
 
 

782. Which organisms are the oldest life forms?

 
 
 
 

783. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

785. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Anoxygenic photosynthesis occurs in:

 
 
 
 

789. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

791. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

793. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

794. Bacteria are found everywhere, except:

 
 
 
 

795. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Black rust of wheat is caused by:

 
 
 
 

805. Seeds are characteristically found in:

 
 
 
 

806. How a fern differs from a moss?

 
 
 
 

807. Green plants are classified as:

 
 
 
 

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

 
 
 
 

809. The young leaves of Cycas have :

 
 
 
 

810. Proembryo in Pinus is :

 
 
 
 

811. The alga, Spirogyra are found in :

 
 
 
 

812. Late blight of potato is caused by :

 
 
 
 

813. Viruses are considered to be:

 
 
 
 

814. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Isomorphic type alternation of generation is found in:

 
 
 
 

819. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

821. Cyanophage is a virus that attacks:

 
 
 
 

822. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

824. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

826. The role of meiosis is for:

 
 
 
 

827. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. The central part of Funaria axis is :

 
 
 
 

833. The fern plant is:

 
 
 
 

834. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. In moss, calyptra is formed from:

 
 
 
 

838. What is the role of nitrifying bacteria?

 
 
 
 

839. Which of the following is a monocot?

 
 
 
 

840. The upper region of moss capsule is :

 
 
 
 

841. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

843. Plasmids are:

 
 
 
 

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

 
 
 
 

845. In Herpes virus DNA is:

 
 
 
 

846. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

848. Which lichen is called Reindeer moss?

 
 
 
 

849. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Spirogyra represents the :

 
 
 
 

857. Cycas is similar to a mustard plant :

 
 
 
 

858. Diploxylic vascular bundles are found in:

 
 
 
 

859. Pollination drop is:

 
 
 
 

860. In moss, stomata are found:

 
 
 
 

861. Facultative parasite is:

 
 
 
 

862. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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