Quiz_Random

1. 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?

 
 
 
 

2. The gametophyte produced by apospory is :

 
 
 
 

3. Which of the following is a heterosporous pteridophyte?

 
 
 
 

4. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

6. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

14. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

15. Who named prion?

 
 
 
 

16. Funaria can be differentiated from Cycas :

 
 
 
 

17. The tree fern is:

 
 
 
 

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

 
 
 
 

19. Which is an exception to cell theory?

 
 
 
 

20. Fruiting body of lichens is :

 
 
 
 

21. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

23.

 

24. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

26. Fruits are not found in:

 
 
 
 

27. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

32. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

37. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Viruses have:

 
 
 
 

43. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Saccharomyces is used in:

 
 
 
 

49. Number of capsomeres forming capsid of TMV is:

 
 
 
 

50. Cyathia is characterized by:

 
 
 
 

51. Transfusion tissue is present in the leaflet of:

 
 
 
 

52. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

54. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Endemic plants are characterised by their:

 
 
 
 

58. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Bacteria were first discovered by:

 
 
 
 

65. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

67. Spores of which plants have chloroplast:

 
 
 
 

68. The archegonia of Selaginella are differentiated by:

 
 
 
 

69. Simple polyembryony is found in :

 
 
 
 

70. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

71. Etiology includes the study of :

 
 
 
 

72. Among the algae kelps are :

 
 
 
 

73. Reproduction in Rhizopus is:

 
 
 
 

74. Most common type of conjugation in Spirogyra is :

 
 
 
 

75. Interferon is a:

 
 
 
 

76. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

78. Select the wrong statement:

 
 
 
 

79. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Aflatoxin is produced as a product in :

 
 
 
 

84. Typhoid in man is caused by:

 
 
 
 

85. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. NBG of Lucknow is now named as:

 
 
 
 

91. Which class of Protozoa includes all parasitic forms?

 
 
 
 

92. Facultative parasite is:

 
 
 
 

93. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

94. The similarity between cyanobacteria and bacteria:

 
 
 
 

95. What are Cyanobacteria?

 
 
 
 

96. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

98. The chloroplast in Ulothrix is :

 
 
 
 

99. Which bacteria convert nitrate into nitrogen?

 
 
 
 

100. Gametophyte is the main plant body in :

 
 
 
 

101. First animal pathogenic virus was discovered by:

 
 
 
 

102. Reserve food in Euglena is:

 
 
 
 

103. Maximum diversity of life forms occurs in :

 
 
 
 

104. Heterocysts are found in :

 
 
 
 

105. Sometimes the bacterial cell is enclosed in:

 
 
 
 

106. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

108. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

110. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

112. What is a vector?

 
 
 
 

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

 
 
 
 

114. Which is a fungicide?

 
 
 
 

115. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

117. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

119. Chemosynthetic bacteria are:

 
 
 
 

120. What are plasmids?

 
 
 
 

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

 
 
 
 

122. Which is an edible fungus?

 
 
 
 

123. The young leaves of Cycas have :

 
 
 
 

124. Pinus microsporophyll bears:

 
 
 
 

125. Gram stain is used to:

 
 
 
 

126. 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?

 
 
 
 

127. The flagella of Chlamydomonas are:

 
 
 
 

128. The sporophyte of Riccia is :

 
 
 
 

129. Which organisms are the oldest life forms?

 
 
 
 

130. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

132. Lichens are ecologically important because :

 
 
 
 

133. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

135. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

137. Pollination in Cycas takes place by :

 
 
 
 

138. In moss, sporogenous tissue arises from:

 
 
 
 

139. The two conjugating gametangia of Rhizopus are:

 
 
 
 

140. Cocci types of bacteria are:

 
 
 
 

141. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

143. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Winged seeds are found in :

 
 
 
 

147. Rhizopus and yeast are usually:

 
 
 
 

148. How is moss different from fern?

 
 
 
 

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

 
 
 
 

150. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. Mycoplasma are:

 
 
 
 

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

 
 
 
 

157. Who discovered heterothallism in fungi?

 
 
 
 

158. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. The term stele was given by:

 
 
 
 

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

 
 
 
 

166. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

168. Spermatophyta are characterized by producing:

 
 
 
 

169. Pseudomycelium is found in:

 
 
 
 

170. Which condition is found in Cycas?

 
 
 
 

171. Lichens are the indicator of pollution :

 
 
 
 

172. The antibiotic is obtained from:

 
 
 
 

173. The order generally ends with:

 
 
 
 

174. Which of the following applies to Selaginella?

 
 
 
 

175. Pasteurization of milk involves heating for:

 
 
 
 

176. All algae have:

 
 
 
 

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

 
 
 
 

178. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

180. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

182. Cellular slime mold is:

 
 
 
 

183. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

185. Cycas revoluta is widely grown as :

 
 
 
 

186. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

188. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Bacteria are found everywhere, except:

 
 
 
 

192. Fertility of the soil is increased by:

 
 
 
 

193. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

195. The sporangiophores in Rhizopus are:

 
 
 
 

196. Which is the correct statement about Selaginella?

 
 
 
 

197. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Which is a tautonym?

 
 
 
 

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

 
 
 
 

202. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. The lichens growing on rocks are called :

 
 
 
 

207. In tracheophyta:

 
 
 
 

208. Plasmids are:

 
 
 
 

209. Facultative saprophyte is:

 
 
 
 

210. Viruses are commonly transmitted in plants through:

 
 
 
 

211. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. The lambda phase is a:

 
 
 
 

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

 
 
 
 

216. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

218. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. In moss, stomata are found:

 
 
 
 

222. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. What is streptomycin?

 
 
 
 

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

 
 
 
 

227. The chief characteristic of class Ascomycetes is:

 
 
 
 

228. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

230. The leaves of Funaria are :

 
 
 
 

231. Most of the lichens are composed of :

 
 
 
 

232. Viroids have:

 
 
 
 

233. Which is a redwood tree?

 
 
 
 

234. Select the correct statement: (NEET 2016)

 
 
 
 

235. Metulae are found in:

 
 
 
 

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

 
 
 
 

237. Spermatophyta are characterized by producing:

 
 
 
 

238. Amoeba is a member of the phylum:

 
 
 
 

239. The sporangium of fern contains nearly:

 
 
 
 

240. Bentham and Hooker placed gymnosperms:

 
 
 
 

241. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

243. The zygospore in Rhizopus on germination forms:

 
 
 
 

244. Germ theory of disease was proposed by:

 
 
 
 

245. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Which is a gametophytic tissue?

 
 
 
 

249. 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:

 
 
 
 

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

 
 
 
 

251. Citrus canker is caused by :

 
 
 
 

252. 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:

 
 
 
 

253. Zoogametes are not found in:

 
 
 
 

254. Most of the algae are :

 
 
 
 

255. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

260. Cycas plant in appearance resembles :

 
 
 
 

261. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

263. Kuru, a human disease is caused by:

 
 
 
 

264. Black rust of wheat is caused by:

 
 
 
 

265. Which of the following is a parasitic algae?

 
 
 
 

266. Coenogamete is found in:

 
 
 
 

267. Sporophyte of fern is:

 
 
 
 

268. Small epidermal swellings due to infection are called :

 
 
 
 

269. Who discovered cyanophages?

 
 
 
 

270. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Where does meiosis occur in yeast?

 
 
 
 

275. Mycoplasma was discovered by:

 
 
 
 

276. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Generic name of mango is:

 
 
 
 

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

 
 
 
 

282. The fungi used as food are:

 
 
 
 

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

 
 
 
 

284. Sexual reproduction of lichen is due to :

 
 
 
 

285. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Botulism is a:

 
 
 
 

289. The upper region of moss capsule is :

 
 
 
 

290. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

292. The spur of Pinus roxburghii has :

 
 
 
 

293. Bivalved siliceous shell or frustule occur in:

 
 
 
 

294. Saccharomyces ludwigii ascus produces:

 
 
 
 

295. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Iodine is obtained from :

 
 
 
 

302. The prothallus of fern represents the plant:

 
 
 
 

303. Each chloroplast in Spirogyra bears :

 
 
 
 

304. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

306. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

308. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Photosynthetic protists belong to:

 
 
 
 

312. Oswald Tippo’s classification was based on :

 
 
 
 

313. The source of litmus is :

 
 
 
 

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

 
 
 
 

315. Funaria is :

 
 
 
 

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

 
 
 
 

317. In moss, peristomial teeth are:

 
 
 
 

318. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

320. Which one of the following is a monocot?

 
 
 
 

321. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

323. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

328. What is the role of nitrifying bacteria?

 
 
 
 

329. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

331. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

336.

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

 
 
 
 

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

 
 
 
 

339. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

341. Lichens reproduce by :

 
 
 
 

342. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Green plants are classified as:

 
 
 
 

346. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Green plants are classified as :

 
 
 
 

350. The roots of Cycas are :

 
 
 
 

351. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Nitrogen-fixing bacteria may be located:

 
 
 
 

355. 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?

 
 
 
 

356. The fern plant is:

 
 
 
 

357. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. To which country Antony van Leeuwenhoek belong?

 
 
 
 

363. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

365. 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:

 
 
 
 

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

 
 
 
 

367. Antibiotics cure the disease by:

 
 
 
 

368. Broad spectrum antibiotic is, which:

 
 
 
 

369. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

371. Some bacteria cannot be killed easily because of:

 
 
 
 

372. Woody climbers are known as :

 
 
 
 

373. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

375. Pollination in Pinus is :

 
 
 
 

376. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Ovary is absent in :

 
 
 
 

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

 
 
 
 

381. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

387. One of the distinctive feature of Spirogyra is :

 
 
 
 

388. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

390. Most appropriate word for protozoans is:

 
 
 
 

391. Pteridophytes are also known as :

 
 
 
 

392. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. The first to isolate a plant virus was:

 
 
 
 

396. Lichens are pioneers of vegetation in a :

 
 
 
 

397. The spermatozoids of Cycas are :

 
 
 
 

398. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

400. Embryophyta includes:

 
 
 
 

401. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

403. In a diplontic life cycle:

 
 
 
 

404. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

406. Protozoans are considered animals because these are:

 
 
 
 

407. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

409. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

420. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

424. In Funaria :

 
 
 
 

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

 
 
 
 

426. A gill of Agaricus:

 
 
 
 

427. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

429. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Ovary is absent in:

 
 
 
 

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

 
 
 
 

435. Azolla growing in paddy fields helps in:

 
 
 
 

436. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442.

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

 
 
 
 

444. Clostridium can:

 
 
 
 

445. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Ergot is obtained from :

 
 
 
 

452. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

454.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

461. Late blight of potato is caused by :

 
 
 
 

462. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

467. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Fairy ring is the name given to:

 
 
 
 

471. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

473. The leafy fern plant represents the:

 
 
 
 

474. Triple antigen injection or vaccine are for:

 
 
 
 

475. Citrus canker is caused by:

 
 
 
 

476. Bacteria are considered to be plants because they:

 
 
 
 

477. Wine turns sour because of:

 
 
 
 

478. Which of the following is true for viruses?

 
 
 
 

479. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Cell walls of Gram-positive bacteria contain:

 
 
 
 

483. Which of the following have algal zone?

 
 
 
 

484. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

486. Mostly type of zygospore in Ulothrix is:

 
 
 
 

487. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

489. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

494. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Pinus is:

 
 
 
 

499. Which one of the following statement is wrong?

 
 
 
 

500. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Cycas is different from mango in :

 
 
 
 

504. All protozoans possess:

 
 
 
 

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

 
 
 
 

506. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

508. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

510. Bryophyta have a special character from other plants:

 
 
 
 

511. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. The chromosomal number in:

 
 
 
 

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

 
 
 
 

517. Fern prothallus produces:

 
 
 
 

518. In binomial system most of the words are:

 
 
 
 

519. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

520. Longest known virus is:

 
 
 
 

521. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. LSD is:

 
 
 
 

525. Acetobacter is useful in:

 
 
 
 

526. The nucleus of bacteria is:

 
 
 
 

527. The microsporophylls on the cone of Cycas are :

 
 
 
 

528. Ethylene oxide is widely used to:

 
 
 
 

529. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Gymnosperms could also be called as:

 
 
 
 

534. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

535. Rhizoids of Riccia are :

 
 
 
 

536. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Economic importance of bacteria lies in their being:

 
 
 
 

540. Funaria are commonly found :

 
 
 
 

541. Bryophyta have been placed in cryptogams because:

 
 
 
 

542. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

544. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

551. Indusium in Dryopteris is:

 
 
 
 

552. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Lichens form the first community in

 
 
 
 

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

 
 
 
 

560. Fruits are not found in :

 
 
 
 

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

 
 
 
 

562. Cap cells are found in the filament of:

 
 
 
 

563. Which of the following have a prokaryotic cell?

 
 
 
 

564. In Cycas microsporangia are borne on:

 
 
 
 

565. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Which statement is wrong in regard to bacteria?

 
 
 
 

569. Majority of lichens are :

 
 
 
 

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

 
 
 
 

571. Infective part of virus was discovered by:

 
 
 
 

572. The central part of Funaria axis is :

 
 
 
 

573. Which causes red tide?

 
 
 
 

574. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Virus and bacteriophage are made-up of:

 
 
 
 

578. The chloroplast of Chlamydomonas are:

 
 
 
 

579. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

581. The root nodules of leguminous plants contain:

 
 
 
 

582. Bacteriophages have been used as:

 
 
 
 

583. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

585. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

591. Which of the following are included in Tracheophyta?

 
 
 
 

592. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

594. In Funaria, calyptra is derived from :

 
 
 
 

595. Streptomyces falls under:

 
 
 
 

596. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Total parasites belong to:

 
 
 
 

600. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

602. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

614. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

616. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Fern prothallus is:

 
 
 
 

622. The stele of Dryopteris is a:

 
 
 
 

623. Centric discoid form of diatom is:

 
 
 
 

624. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

626. 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:

 
 
 
 

627. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Ovules are not found enclosed in ovary in :

 
 
 
 

635. Which of the following statement is correct?

 
 
 
 

636. Virion refers to:

 
 
 
 

637. Late blight of potato is caused by:

 
 
 
 

638. Methanogens belong to:

 
 
 
 

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

 
 
 
 

640. Anoxygenic photosynthesis occurs in:

 
 
 
 

641. Which of the following is sago palm?

 
 
 
 

642. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Vascular cryptogams is the term used for:

 
 
 
 

646. Red rot of sugarcane is caused by :

 
 
 
 

647. Mixed cropping helps :

 
 
 
 

648. Rhizopus belongs to:

 
 
 
 

649. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

651. The vascular bundles of Cycas stem are :

 
 
 
 

652. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

654. Cycas is similar to a mustard plant :

 
 
 
 

655. In Gymnosperms endosperm is a:

 
 
 
 

656. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Synzoospore is produced in:

 
 
 
 

661. Pollination drop is:

 
 
 
 

662. The ferns are usually found:

 
 
 
 

663. Most primitive group of vascular plants are:

 
 
 
 

664. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

666. The fungi that grow on wood are called:

 
 
 
 

667. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

669. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. In Cycas:

 
 
 
 

673. Parmelia belongs to :

 
 
 
 

674. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

676. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

678. Red rot of sugarcane is caused by:

 
 
 
 

679. Placenta in fern is:

 
 
 
 

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

 
 
 
 

681. Ergot of rye is caused by:

 
 
 
 

682. The tallest moss in the world is :

 
 
 
 

683. Which of the following shows heterotrichous habit?

 
 
 
 

684. Diphtheria is caused by:

 
 
 
 

685. Smallpox is caused by:

 
 
 
 

686. Germination of the seed of Pinus is :

 
 
 
 

687. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

689. Yeast belongs to class:

 
 
 
 

690. Embryo formation is not known in :

 
 
 
 

691. In Cycas which structure is equivalent to stamen?

 
 
 
 

692. The smallest unit of classification is:

 
 
 
 

693. Ulothrix produces :

 
 
 
 

694. Lichens show :

 
 
 
 

695. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

697. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

703. The truncated cone of HIV consists of:

 
 
 
 

704. The smallest bacterium is:

 
 
 
 

705. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

707. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

709. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

711. Winged pollen grains are found in :

 
 
 
 

712. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

714. The seedless plants which possess vascular tissues are:

 
 
 
 

715. The disease symptom necrosis refers to :

 
 
 
 

716. The mycelium of Rhizopus is:

 
 
 
 

717. Iodine is obtained from:

 
 
 
 

718. Leaf spot of groundnut is caused by :

 
 
 
 

719. Pinus gerardiana is :

 
 
 
 

720. Downy mildew disease is caused by :

 
 
 
 

721. The disease apple scab is caused by:

 
 
 
 

722. Which is not found in bacteria?

 
 
 
 

723. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. How a fern differs from a moss?

 
 
 
 

727. Which among the following is a shrub?

 
 
 
 

728. Roots are absent in :

 
 
 
 

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

 
 
 
 

730. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. The largest alga is:

 
 
 
 

734. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. The most important property of yeast is:

 
 
 
 

743. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. The photosynthetic protists are:

 
 
 
 

747. Antibiotic has been extracted from :

 
 
 
 

748. Protists which are diploid reproduce sexually by:

 
 
 
 

749. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

751. Asexual reproductive body of Volvox is called:

 
 
 
 

752. Milk is converted to curd by:

 
 
 
 

753. The Rhizopus is:

 
 
 
 

754. The coralloid roots are :

 
 
 
 

755. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. The sexual reproductive organs in Rhizopus are:

 
 
 
 

760. Cycas is:

 
 
 
 

761. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

762. Diploxylic vascular bundles are found in:

 
 
 
 

763. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

768. The middle sterile part of capsule is called:

 
 
 
 

769. Little leaf disease of Brinjal is caused by:

 
 
 
 

770. Vegetative reproduction in Cycas is by means of :

 
 
 
 

771. Acellular slime mold is/are:

 
 
 
 

772. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

773. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

774. The chief characteristic of bryophyta is that :

 
 
 
 

775. Rice, pea, potato are :

 
 
 
 

776. The development of sporangium in Selaginella is:

 
 
 
 

777. Which of the following statements is not correct?

 
 
 
 

778. Nannandria are:

 
 
 
 

779. Early blight of potato is caused by:

 
 
 
 

780. 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:

 
 
 
 

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

 
 
 
 

782. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

783. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

785. Oswald Tippo’s classification is:

 
 
 
 

786. The leaves of Funaria are :

 
 
 
 

787. Cleavage polyembryony is found in :

 
 
 
 

788. Which part of Riccia bears nurse cells?

 
 
 
 

789. Azolla and Salvinia both are:

 
 
 
 

790. Water bloom is generally caused by :

 
 
 
 

791. Black rust of wheat is caused by:

 
 
 
 

792. Agar-agar is obtained from:

 
 
 
 

793. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

795. Meristele of fern is:

 
 
 
 

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

 
 
 
 

797. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Pythium debaryanum is the causative agent of:

 
 
 
 

801. Bacteria growing on synthetic medium are called:

 
 
 
 

802. Yeast is a source of:

 
 
 
 

803. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

808. Select the wrong statement:

 
 
 
 

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

 
 
 
 

810. Funaria is a Bryophyta because :

 
 
 
 

811. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. Which of the following are included in Tracheophyta?

 
 
 
 

815. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

817. In Gymnocarpeae the fruiting body is :

 
 
 
 

818. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

824. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. In Herpes virus DNA is:

 
 
 
 

828. The fungi are usually:

 
 
 
 

829. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

834. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

836. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

838. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

840. Detailed study of bacteriophage was made by:

 
 
 
 

841. An Hfr bacterium is one that contains:

 
 
 
 

842. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

843. The archegonia in Selaginella develop on:

 
 
 
 

844. Pasteur is famous for his:

 
 
 
 

845. Ovules are not found enclosed in ovary in :

 
 
 
 

846. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Heterosporous pteridophytes always form:

 
 
 
 

850. Male gametophyte of Selaginella is found:

 
 
 
 

851. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

853. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

855. Redness of red sea is due to :

 
 
 
 

856. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

858. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Which of the following is true for Selaginella?

 
 
 
 

862. Most primitive kind of flower is represented by:

 
 
 
 

863. The megaspore of Selaginella on germination produces:

 
 
 
 

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