InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Choose odd one w.r.t categories of plants where pollen tube is requied for gamete transfer Angiosperm Gymnosperms , Bryphytes algae |
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Answer» Correct Answer - Bryophytes, Algae Correct answer is both Bryophytes and algae . In algae both gametes are motile . In Bryophytes male gamete is motile and it's transfer occurs through water . |
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| 202. |
In which group of plants there is involvement of tube for movement of male gamete ? Justify this. |
| Answer» Seeded plants because male gamete is non - motile | |
| 203. |
Binary fission is a regular mode of reproduction inA. yeastB. bacteriaC. MarchantiaD. mosses |
| Answer» Correct Answer - B | |
| 204. |
Variation observed during tissue culture of some plants are known asA. Clonal variationsB. Somaclonal variationsC. Somatic variationsD. Tissue culture variations. |
| Answer» Correct Answer - B | |
| 205. |
Virus free plants can be obtained byA. Antibiotic treatmentB. Bordeaux mixtureC. Root tip culuteD. Shoot tip culture. |
| Answer» Correct Answer - D | |
| 206. |
Match the following `{:(,"Column I",,"Column II"),("A","Virus free",,"I intact roots"),("B","Root cutting",,"II in vitro"),("C","Dalbegia",,"III Black berry"),("D","Mounted layering",,"IV Jasmine"):}`A. A-I, B-III, C-II, D-IVB. A-II, B-III, C-I, D-IVC. A-II, B-I, C-III, D-IVD. A-II, B-III, C-IV, D-I |
| Answer» Correct Answer - B | |
| 207. |
Totipotent cell refers toA. An undifferentiated cells capable of developing into complete embryoB. An undifferentiated cell capable of developing into an organC. An undifferentiated cell capable of developing into a system or entire plantD. Cells which lack the capability or differentiating into an organ or system |
| Answer» Correct Answer - C | |
| 208. |
In grafting the part having the strong root system is known asA. ScionB. StockC. Both (a) and (b)D. Slice or Whip |
| Answer» Correct Answer - B | |
| 209. |
Which of the following cell is totipotentA. Sieve tubesB. Xylem vesselsC. MeritemsD. Cork cells |
| Answer» Correct Answer - C | |
| 210. |
Regeneration was first discovered in Hydra byA. LinnaeusB. TrembleyC. Thomas AddisonD. Stanley |
| Answer» Correct Answer - B | |
| 211. |
Binary fission is transverse inA. TransverseB. LongitudinalC. ObliqueD. Asymmetrical |
| Answer» Correct Answer - A | |
| 212. |
Binary fission in Euglena isA. TransverseB. LongitudinalC. ObliqueD. Unequal |
| Answer» Correct Answer - B | |
| 213. |
A great power of regeneration is found inA. HydraB. SpongesC. PlanariaD. All the three |
| Answer» Correct Answer - D | |
| 214. |
The living organisms can be undexceptionally distinguished from the non - living things on the basis of their ability forA. reproductionB. growth and movementC. responsiveness to touchD. intersection with the environment and progressive evolution |
| Answer» Correct Answer - A | |
| 215. |
Maximum life span of Eagle isA. 90 yearsB. 15 yearsC. 10 yearsD. 5 years |
| Answer» Correct Answer - A | |
| 216. |
In which of the following organisms, self fertilization is seen ?A. FishB. RoundwormC. EarthwormD. Tapeworm |
| Answer» Correct Answer - D | |
| 217. |
Male gametes in angiosperms are formed by the division ofA. vegetative cellB. microspore mother cellC. microsporeD. generative cell |
| Answer» Correct Answer - D | |
| 218. |
(a) Mention the different phases in the life cycle of organism (b) For which category of plants clear cut distinction between three phases is absent ? (c ) Which phase involves structural and functional deterioration of body ? |
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Answer» (a) Juvenile, Reproductive, Senescent phase (b) In polycarpic plants, clear cut distinction between all the three phases is absent because in these plants flowering occurs at repeated intervals. ( c) Post-reproducctive phase/senescent phase. |
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| 219. |
Rearrange the following events of sexual reproduction in the sequence in which they occur in a flowering plant embryogenesis, fertilisation, gametogenesis, pollination. |
| Answer» The correct sequence of events of sexual reproduction in a flowering plant are as follows gametogenesis, pollination, fertilisation, embryogenesis. | |
| 220. |
Corm is used as a means of vegetative multiplication inA. gingerB. potatoC. bananaD. Amorphophallus |
| Answer» Correct Answer - D | |
| 221. |
Air layering is performed in case ofA. jasmineB. grapevineC. gooseberryD. litchi |
| Answer» Correct Answer - D | |
| 222. |
Eggs are covered with a tough, leathery coat in case ofA. SharksB. Bony fishesC. LizardsD. Urochordates |
| Answer» Correct Answer - C | |
| 223. |
(A) Why do organisms like algae and fungi shift from asexual mode of reproduction to sexual mode ? (b) What is a juvenile phase in organisms ? |
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Answer» (a) Organisms like algae and fungi shift from asexual to sexual mode of reprpductive to overcome unfavorable conditions of growth. (b) The period of growth between their birth upto their reproductive maturity is called juvenile phase. |
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| 224. |
The group of crop plants which are vegetatively propagated isA. Potato, Papaya, BananaB. Onion, Coriander, LimeC. Groundnut, Drumstick, CashewnutD. Sugarcane, Tapioca, Banana, Potato, Rose |
| Answer» Correct Answer - D | |
| 225. |
Parthenogamy represents theA. Union of two vegetative nucleiB. Union of two parent hyphaeC. Union of two gametes of one sexD. Union of three gametes |
| Answer» Correct Answer - C | |
| 226. |
Which of the following devices is not used by plants to prevent autogamyA. Self incompatibilityB. Production of unisexual flowersC. HeterostylyD. Production of cleitogamous flowers |
| Answer» Correct Answer - D | |
| 227. |
Between an annual and a perennial plant , which one has a shorter juvenile phase ? Give one reason. |
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Answer» In a lifespan, the organism has to grow and develop (the juvenile phase). After that the organism mature sexually and enter into the reproductive phase, before it undergoes senescence followed by death. Since, the entire life cycle of an annual plant is shorter and has to be completed in one growing season, its juvenile phase is shorter than that of a perennial plant. |
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| 228. |
Give reasons as to why cell division cannot be a type of reproduction in multicellular organisms. |
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Answer» In unicellular animals, cell division is the means of reproduction to increase their number while, in case of multicellular organisms, they have well developed reproductive organs which help in reproduction. Their whole body does not participate in reproduction like unicellular organisms. |
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| 229. |
Cell division is mode of reproduction inA. AmoebaB. bacteriaC. yeastD. All of these |
| Answer» Correct Answer - D | |
| 230. |
Suggest a possible explanation why the seeds in a pea pod are arranged in a row, whereas those in tomato are scattered in the juicy pulp. |
| Answer» In pea ovary, the ovules are arranged on one margin of it and carpel is monocarpellary but in tomatoes the gynoecium is tricarpellary with axile placentation. | |
| 231. |
Cell division itself is a mode of reproduction inA. Amoeba, PenicilliumB. Chara, BacteriaC. Chlamydomonas, PenicilliumD. Amoeba, Bacteria |
| Answer» Correct Answer - D | |
| 232. |
Cell division is itself a mode od reproduction inA. Protista and all fungiB. Monera, fungi and higher plantsC. Protista and moneraD. Protista only |
| Answer» Correct Answer - C | |
| 233. |
The internal buds of fresh water sponges are otherwise calledA. choanocyteB. gemmuleC. osculumD. blastula |
| Answer» Correct Answer - B | |
| 234. |
Conjugation phenomenon of sexual reproduction is shown byA. E.coliB. ParameciumC. both a and bD. Hydra |
| Answer» Correct Answer - C | |
| 235. |
Example of corms isA. GingerB. ColocasiaC. OnionD. Potato |
| Answer» Correct Answer - B | |
| 236. |
Gonads are derived from :A. ectodermB. mesodermC. endodermD. None of these |
| Answer» Correct Answer - B | |
| 237. |
Germinal epithelium is :A. cuboiderB. sensoryC. columnarD. squanmous |
| Answer» Correct Answer - A | |
| 238. |
Multiple fission occurs inA. AmoebaB. CycasC. BryophytaD. All of these |
| Answer» Correct Answer - A | |
| 239. |
Fusion of gametes is termed :A. hemixisB. synganyC. cytogamyD. karyogamy |
| Answer» Correct Answer - B | |
| 240. |
Fusion of two dissimilar gametes is known asA. allogamyB. anisogamyC. autogamyD. dichogamy |
| Answer» Correct Answer - B | |
| 241. |
Multiple fission in Amoeba may occur by?A. encystationB. without encystationC. pseudopodiospore formationD. all of the above |
| Answer» Correct Answer - D | |
| 242. |
For ovulation in reflex ovulatorsA. Coitus is necessaryB. Coitus is not necessaryC. Plenty of food is not neceassaryD. Plenty of food is necessary |
| Answer» Correct Answer - A | |
| 243. |
Monoestrous animals haveA. One ovulation each monthB. One eggC. One breeding season in a yearD. One menses each month. |
| Answer» Correct Answer - C | |
| 244. |
Mango is being propagated throughA. tissue cultureB. graftingC. stem cuttingsD. layering |
| Answer» Correct Answer - B | |
| 245. |
First succesful animal clone wasA. dolly goatB. dolly sheepC. molly goatD. molly sheep |
| Answer» Correct Answer - B | |
| 246. |
Mango and Guava are propagated throughA. tissue cultureB. graftingC. stem cuttingsD. layering |
| Answer» Correct Answer - B | |
| 247. |
Microproopagation isA. Raising of plants from a small tissue in cultureB. Multiplication of small plantsC. Propagation of small parts of organismsD. Indefinite maintenance of an organ or tissue |
| Answer» Correct Answer - A | |
| 248. |
In grafting stock and scion ought to be joinedA. Phaloem to pheloemB. xylem to xylemC. pith to pithD. cambium to cambium |
| Answer» Correct Answer - D | |
| 249. |
Assertion : Grafting is not usually possible in monocots. Reasons : Sucessfule grafting requires that cambia of both stock and scion fuse to form new vascular tissues.A. If both Assertion and Reasons are true and the Reason is a correct explanatin of the Assertion.B. If both Assertion and Reasons are true but Reason is a correct explanatin of the Assertion.C. If Assertion is true but the Reasons is false.D. If both Assertion and Reasons are false. |
| Answer» Correct Answer - A | |
| 250. |
The smallest viable unit which can grow, multiply and form a plant in tissue culture isA. ChromosomeB. NucleusC. CellD. Tissue |
| Answer» Correct Answer - C | |