Quiz_Random

1. Banana bunchy top is caused by :

 
 
 
 

2. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The most important property of yeast is:

 
 
 
 

6. Streptomyces falls under:

 
 
 
 

7. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

9. Psilotum is:

 
 
 
 

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

 
 
 
 

11. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

13. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

21. Funaria is :

 
 
 
 

22. Botulism is a:

 
 
 
 

23. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. 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?

 
 
 
 

27. 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:

 
 
 
 

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

 
 
 
 

29. An Hfr bacterium is one that contains:

 
 
 
 

30. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

32. Cycas is :

 
 
 
 

33. Siphonogamy is found in:

 
 
 
 

34. The source of litmus is :

 
 
 
 

35. The word “sea weeds” is used for:

 
 
 
 

36. Pythium debaryanum is the causative agent of:

 
 
 
 

37. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

39. Photosynthetic protists belong to:

 
 
 
 

40. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Fruits are not found in :

 
 
 
 

44. Infective part of virus was discovered by:

 
 
 
 

45. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

47. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

49. 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:

 
 
 
 

50. Which is a gametophytic tissue?

 
 
 
 

51. In moss, stomata are found:

 
 
 
 

52. In Selaginella, the microsporangia are:

 
 
 
 

53. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

55. Proembryo in Pinus is :

 
 
 
 

56. Ovary is absent in:

 
 
 
 

57. The order generally ends with:

 
 
 
 

58. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

60. The prothallus of fern represents the plant:

 
 
 
 

61. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Green plants are classified as:

 
 
 
 

68. In a bacteriophage, DNA is present in:

 
 
 
 

69. Ovules are not found enclosed in ovary in :

 
 
 
 

70. 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?

 
 
 
 

71. Fern prothallus is:

 
 
 
 

72. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

77. Gymnosperms could also be called as:

 
 
 
 

78. Germination of the seed of Pinus is :

 
 
 
 

79. Genetic material of TMV is:

 
 
 
 

80. In angiosperms double fertilization represents:

 
 
 
 

81. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. An alga which is rich in proteins:

 
 
 
 

86. Which of the following shows heterotrichous habit?

 
 
 
 

87. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

89. Common phycobiont in a lichen is :

 
 
 
 

90. Fruits are not found in Cycas because:

 
 
 
 

91. The vascular bundles of Cycas stem are :

 
 
 
 

92. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

100. Smut of maize is caused by :

 
 
 
 

101. The phloem of vascular system of Cycas is :

 
 
 
 

102. The middle sterile part of capsule is called:

 
 
 
 

103. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

105. The fungi used as food are:

 
 
 
 

106. Mucilaginous canals in Cycas are found in :

 
 
 
 

107. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Quarantine regulations are concerned with:

 
 
 
 

111. The fern plant is:

 
 
 
 

112. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Interferon is a:

 
 
 
 

116. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

122. The lichens growing on rocks are called :

 
 
 
 

123. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

125. Green plants are classified as :

 
 
 
 

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

 
 
 
 

127. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

128. Pollination drop is:

 
 
 
 

129. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Plasmids are:

 
 
 
 

133. Antibiotic has been extracted from :

 
 
 
 

134. Which is an edible fungus?

 
 
 
 

135. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

143. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Funaria is a Bryophyta because :

 
 
 
 

149. 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?

 
 
 
 

150. Which have the largest antherozoid?

 
 
 
 

151. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

153. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Funaria is :

 
 
 
 

157. The megaspore of Selaginella on germination produces:

 
 
 
 

158. The plants of Funaria grow :

 
 
 
 

159. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

161. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

162. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

164. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Sometimes the bacterial cell is enclosed in:

 
 
 
 

169. The rhizoids of Funaria are :

 
 
 
 

170. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Ulothrix produces :

 
 
 
 

174. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

176. The zoospores of Ulothrix are :

 
 
 
 

177. Acetobacter is useful in:

 
 
 
 

178. 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:

 
 
 
 

179. 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:

 
 
 
 

180. The ferns are usually found:

 
 
 
 

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

 
 
 
 

182. In tracheophyta:

 
 
 
 

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

 
 
 
 

184. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Pythium debaryanum is the causative agent of:

 
 
 
 

192. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

194. Lichens are indicators of :

 
 
 
 

195. Bacteriophage consists of:

 
 
 
 

196. Bacteria are found everywhere, except:

 
 
 
 

197. To which class Riccia belongs :

 
 
 
 

198. Mixed cropping helps :

 
 
 
 

199. Broad spectrum antibiotic is, which:

 
 
 
 

200. Which condition is found in Cycas?

 
 
 
 

201. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Soil fertility is lost by the activities of:

 
 
 
 

205. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

207. Choose the correct statement about Spirogyra:

 
 
 
 

208. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

210. Pinus is:

 
 
 
 

211. 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?

 
 
 
 

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

 
 
 
 

213. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

215. Bacteria differ from viruses in being sensitive to:

 
 
 
 

216. Which of the following does not contain chlorophyll?

 
 
 
 

217. NBG of Lucknow is now named as:

 
 
 
 

218. The fungi that grow on wood are called:

 
 
 
 

219. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

221. Spirogyra represents the :

 
 
 
 

222. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

224. Heterocysts are found in :

 
 
 
 

225. In Funaria, calyptra is derived from :

 
 
 
 

226. Some biologists have used the term Mycetozoa for:

 
 
 
 

227.

228. Usually, bacteria reproduce by:

 
 
 
 

229. Triple antigen injection or vaccine are for:

 
 
 
 

230. Transfusion tissue is present in the leaflet of:

 
 
 
 

231. Oswald Tippo’s classification was based on :

 
 
 
 

232. Mycoplasma contains:

 
 
 
 

233. Isomorphic type alternation of generation is found in:

 
 
 
 

234. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Nitrifying bacteria play an important role by converting:

 
 
 
 

240. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

242. Chief constituents of bordeaux mixture are :

 
 
 
 

243. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

248. Ovules are not found enclosed in ovary of:

 
 
 
 

249. Bryophyta have been placed in cryptogams because:

 
 
 
 

250. Select the wrong statement:

 
 
 
 

251. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Heterotrichous habit means :

 
 
 
 

255. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Cycas revoluta is widely grown as :

 
 
 
 

260. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

262. Spermatophyta are characterized by producing:

 
 
 
 

263. The nucleus of bacteria is:

 
 
 
 

264. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

266. Redness of red sea is due to :

 
 
 
 

267. Rhizopus and yeast are usually:

 
 
 
 

268. Which one of the following statement is wrong?

 
 
 
 

269. Cocci types of bacteria are:

 
 
 
 

270. In Gymnocarpeae the fruiting body is :

 
 
 
 

271. Protistan algae obtain their food as:

 
 
 
 

272. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. In dinoflagellates, the two flagella are:

 
 
 
 

276. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

278. Which is not true for Escherichia coli?

 
 
 
 

279. Winged pollen grains are found in :

 
 
 
 

280. The two conjugating gametangia of Rhizopus are:

 
 
 
 

281. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Mycoplasma was discovered by:

 
 
 
 

285. Virus and bacteriophage are made-up of:

 
 
 
 

286. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

288. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

290. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

292. Which is a fungicide?

 
 
 
 

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

 
 
 
 

294. Discovery of penicillin was based on:

 
 
 
 

295. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

297. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

299. Cyathia is characterized by:

 
 
 
 

300. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Leprosy is caused by:

 
 
 
 

310. Heterosporous pteridophytes always form:

 
 
 
 

311. Which is a redwood tree?

 
 
 
 

312. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

314. Rhizopus belongs to:

 
 
 
 

315. Lichens reproduce by :

 
 
 
 

316. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

318. The sporangiophores in Rhizopus are:

 
 
 
 

319. Winged seeds are found in :

 
 
 
 

320. The sporophyte of Riccia is represented by :

 
 
 
 

321. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. The gametophyte of fern bears:

 
 
 
 

330. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Sexual reproduction of lichen is due to :

 
 
 
 

335. Linnaeus is credited with introducing:

 
 
 
 

336. Longest known virus is:

 
 
 
 

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

 
 
 
 

338. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

340. Cycas is:

 
 
 
 

341. Water-borne bacterial diseases are:

 
 
 
 

342. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Endemic plants are characterised by their:

 
 
 
 

347. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

356. Helotism word is used for the symbiosis between :

 
 
 
 

357. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

359. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Which group of algae have an incipient nucleus?

 
 
 
 

365. The term stele was given by:

 
 
 
 

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

 
 
 
 

367. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

369. The teeth of peristome of Funaria are :

 
 
 
 

370. Virion refers to:

 
 
 
 

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

 
 
 
 

372. Ectocarpus produces:

 
 
 
 

373. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

375. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

377. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. The ascus of yeast contains:

 
 
 
 

382. Mycoplasma is different from bacteria due to:

 
 
 
 

383. Cell walls of Gram-positive bacteria contain:

 
 
 
 

384. Spores of which plants have chloroplast:

 
 
 
 

385. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

387. Number of capsomeres forming capsid of TMV is:

 
 
 
 

388. Detailed study of bacteriophage was made by:

 
 
 
 

389. Synzoospore is produced in:

 
 
 
 

390. The first to isolate a plant virus was:

 
 
 
 

391. Spirogyra differs from moss protonema in having :

 
 
 
 

392. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

393. Cleavage polyembryony is found in :

 
 
 
 

394. The mode of nutrition of bacteria is usually:

 
 
 
 

395. The sporangium of fern contains nearly:

 
 
 
 

396. Bivalved siliceous shell or frustule occur in:

 
 
 
 

397. Which part of Riccia bears nurse cells?

 
 
 
 

398. All protozoans possess:

 
 
 
 

399. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Late blight of potato is caused by:

 
 
 
 

403. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

408. Mycoplasma are:

 
 
 
 

409. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

411. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Climbers are found in genus:

 
 
 
 

415. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

417. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

422. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. The lambda phase is a:

 
 
 
 

430. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Penicillin is obtained from:

 
 
 
 

434. Which bacteria convert nitrate into nitrogen?

 
 
 
 

435. The group algae possesses representatives belonging to kingdom:

 
 
 
 

436. Which of the following lichens is harmful?

 
 
 
 

437. Ovules are not found enclosed in ovary in :

 
 
 
 

438. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

444.

445. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Which is an exception to cell theory?

 
 
 
 

450. In moss, sporogenous tissue arises from:

 
 
 
 

451. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. The leafy fern plant represents the:

 
 
 
 

456. Bacteria are placed under:

 
 
 
 

457. Nannandria are:

 
 
 
 

458. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

460. Which one of the following is a monocot?

 
 
 
 

461. Diphtheria is caused by:

 
 
 
 

462. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

463. The fungi are mostly:

 
 
 
 

464. Red rot of sugarcane is caused by:

 
 
 
 

465. Cycas plant in appearance resembles :

 
 
 
 

466. The upper region of moss capsule is :

 
 
 
 

467. The leaves of Funaria are :

 
 
 
 

468. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Multicellular and jacketed sex organs are found in :

 
 
 
 

472. Mostly type of zygospore in Ulothrix is:

 
 
 
 

473. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

474. Red rot of sugarcane is caused by :

 
 
 
 

475. The seedless plants which possess vascular tissues are:

 
 
 
 

476. Most common type of conjugation in Spirogyra is :

 
 
 
 

477. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

478. The archegonia in Selaginella develop on:

 
 
 
 

479. Meiosis in Ulothrix takes place:

 
 
 
 

480. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

482. Pneumonia is caused by:

 
 
 
 

483. The megasporangium of Selaginella is:

 
 
 
 

484. The tallest moss in the world is :

 
 
 
 

485. Which is the correct statement about Selaginella?

 
 
 
 

486. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

488. Botulinum toxin effects:

 
 
 
 

489. Nitrogen-fixing bacteria may be located:

 
 
 
 

490. Saccharomyces ludwigii ascus produces:

 
 
 
 

491. Male gametophyte of Selaginella is found:

 
 
 
 

492. Which of the following is a monocot?

 
 
 
 

493. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

495. Reserve food in Euglena is:

 
 
 
 

496. Pollination in Cycas takes place by :

 
 
 
 

497. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. The tree fern is:

 
 
 
 

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

 
 
 
 

505. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. Which statement is wrong in regard to bacteria?

 
 
 
 

509. Agar-agar is obtained from:

 
 
 
 

510. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

512. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

519. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

525. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

527. The leaves of Funaria are :

 
 
 
 

528. All archaebacteria lack:

 
 
 
 

529. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Which class of Protozoa includes all parasitic forms?

 
 
 
 

533. Most of the algae are :

 
 
 
 

534. Which of the following is true for Selaginella?

 
 
 
 

535. Lichens are the indicator of pollution :

 
 
 
 

536. Rice, pea, potato are :

 
 
 
 

537. Iodine is obtained from:

 
 
 
 

538. Male gametes in Dryopteris are:

 
 
 
 

539. Penicillin was discovered by:

 
 
 
 

540. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

545. Most primitive embryophytes are placed in:

 
 
 
 

546. Which of the following are absent in Mycoplasma?

 
 
 
 

547. What is streptomycin?

 
 
 
 

548. Majority of lichens are :

 
 
 
 

549. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

555. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

557. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

563. Centric discoid form of diatom is:

 
 
 
 

564. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

570. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. The spur of Pinus roxburghii has :

 
 
 
 

576. Vascular cryptogam is the term used for :

 
 
 
 

577. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. The Rhizopus gametes are formed in:

 
 
 
 

584. What is the role of nitrifying bacteria?

 
 
 
 

585. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

587. The photosynthetic protists are:

 
 
 
 

588. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. The orders generally have the uniform endings:

 
 
 
 

603. All algae have:

 
 
 
 

604. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Which causes red tide?

 
 
 
 

608. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

609. Who named prion?

 
 
 
 

610. The archegonia of Selaginella are differentiated by:

 
 
 
 

611. Red rot of sugarcane is caused by :

 
 
 
 

612. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. 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:

 
 
 
 

616. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

618. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

620. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

622. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. White rust of crucifers is caused by:

 
 
 
 

627. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

628. The chromosomal number in:

 
 
 
 

629. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

635. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

637. Fern plants are:

 
 
 
 

638. The disease symptom necrosis refers to :

 
 
 
 

639. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

641. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

643. Pinus gerardiana is :

 
 
 
 

644. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

650. Citrus canker is caused by:

 
 
 
 

651. Which of the following statements is not correct?

 
 
 
 

652. The largest known bacterium is:

 
 
 
 

653. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

655. Bentham and Hooker placed gymnosperms:

 
 
 
 

656. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

661. Viroids have:

 
 
 
 

662. Downy mildew disease is caused by :

 
 
 
 

663. Lichens form the first community in

 
 
 
 

664.

 

665. Iodine is obtained from :

 
 
 
 

666. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

668.

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

 
 
 
 

670. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

672. Bacteria growing on synthetic medium are called:

 
 
 
 

673. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Cyanophage is a virus that attacks:

 
 
 
 

681. In Cycas the fertilization is:

 
 
 
 

682. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

684. Spermatophyta are characterized by producing:

 
 
 
 

685. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. The young leaves of Cycas have :

 
 
 
 

693. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

695. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

697. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Woody climbers are known as :

 
 
 
 

701. Who discovered streptomycin?

 
 
 
 

702. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Sleeping sickness disease in man is caused by:

 
 
 
 

706. The genetic material of poxvirus is:

 
 
 
 

707. 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:

 
 
 
 

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

 
 
 
 

709. In Cycas:

 
 
 
 

710. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

712. Most primitive group of vascular plants are:

 
 
 
 

713. Placenta in fern is:

 
 
 
 

714. Which of the following is a heterosporous pteridophyte?

 
 
 
 

715. Cryptogams include :

 
 
 
 

716. Ethylene oxide is widely used to:

 
 
 
 

717. What is a vector?

 
 
 
 

718. Who discovered cyanophages?

 
 
 
 

719. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

721. Yeast grows more rapidly in:

 
 
 
 

722. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

724. 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:

 
 
 
 

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

 
 
 
 

726. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

728. Which of the following is true for viruses?

 
 
 
 

729. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Which is a tautonym?

 
 
 
 

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

 
 
 
 

734. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

736. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

738. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

740. Smallpox is caused by:

 
 
 
 

741. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. The chief characteristic of class Ascomycetes is:

 
 
 
 

745. Funaria can be differentiated from Cycas :

 
 
 
 

746. Viruses have:

 
 
 
 

747. Water-net is the name of:

 
 
 
 

748. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. The Rhizopus is:

 
 
 
 

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

 
 
 
 

753. In Pteris, the roots are:

 
 
 
 

754. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Gram stain is used to:

 
 
 
 

758. Liverworts are included in :

 
 
 
 

759. What is absent in Deuteromycetes?

 
 
 
 

760. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

762. What is mycorrhiza?

 
 
 
 

763. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

765. Select the wrong statement:

 
 
 
 

766. A gill of Agaricus:

 
 
 
 

767. Embryophyta includes :

 
 
 
 

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

 
 
 
 

769. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

771. Who among the following discovered virus?

 
 
 
 

772. Which is absent from the xylem of Cycas?

 
 
 
 

773. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

775. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

777. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

778. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

780. Most appropriate word for protozoans is:

 
 
 
 

781. Germ theory of disease was proposed by:

 
 
 
 

782. Ergot of rye is caused by:

 
 
 
 

783. Halophiles are the bacteria that require for growth:

 
 
 
 

784. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

786. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

788. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Sporophyte of fern is:

 
 
 
 

792. Cycas is similar to a mustard plant :

 
 
 
 

793. Heterospory is the production of:

 
 
 
 

794. Cellular slime mold is:

 
 
 
 

795. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

797. Reproduction in Cycas takes place by :

 
 
 
 

798. Cap cells are found in the filament of:

 
 
 
 

799. Photosynthetic bacteria have:

 
 
 
 

800. Meristele of fern is:

 
 
 
 

801. The leaf of Cycas shows:

 
 
 
 

802. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

804. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. LSD is:

 
 
 
 

810. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

812. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

814. Which organisms are the oldest life forms?

 
 
 
 

815. Metulae are found in:

 
 
 
 

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

 
 
 
 

817. Vascular cryptogams is the term used for:

 
 
 
 

818. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

820. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

822. In Herpes virus DNA is:

 
 
 
 

823. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

829. Aflatoxin is produced as a product in :

 
 
 
 

830. In Funaria :

 
 
 
 

831. Embryophyta includes:

 
 
 
 

832. How a fern differs from a moss?

 
 
 
 

833. Economic importance of bacteria lies in their being:

 
 
 
 

834. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

836. Standard size of a herbarium sheet is:

 
 
 
 

837. Mycoplasmas are not viruses in nature because:

 
 
 
 

838. Clostridium can:

 
 
 
 

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

 
 
 
 

840. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. In moss, sporophyte is formed on:

 
 
 
 

847. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Seeds are characteristically found in :

 
 
 
 

851. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

853. Yeast is a source of:

 
 
 
 

854. Lichen show :

 
 
 
 

855. The antherozoids of Funaria are :

 
 
 
 

856. The central part of Funaria axis is :

 
 
 
 

857. The coralloid roots are :

 
 
 
 

858. Parmelia belongs to :

 
 
 
 

859. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

861. Total parasites belong to:

 
 
 
 

862. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

864. Kuru, a human disease is caused by: