InterviewSolution
Saved Bookmarks
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.
| 301. |
Pollen grain develops from …………… of antherA. EpidermisB. EndotheciumC. TapetumD. Sprorogenous tissue. |
| Answer» Correct Answer - D | |
| 302. |
In angiosperms during development of embryo, the suspensor cell develops fromA. OosporeB. IntegumentC. EndospermD. Cotyledon. |
| Answer» Correct Answer - A | |
| 303. |
In oogamy. Fertilization involvesA. Small, nonmotile female gamete and large motile male gameteB. Large nonmotile female gamete and small motile male gamete.C. A nonmotile female gamete and a small nonmotile male gameteD. A large motile female gamete and a small nonmotile male gamete. |
| Answer» Correct Answer - B | |
| 304. |
Nucleus of megaspore divides mitotically from two nuclei which move to opposite poles and leter from an embryo sac which isA. 2- nucleateB. 4- nucleateC. 6- nucleateD. 8- nucleate. |
| Answer» Correct Answer - D | |
| 305. |
In angiosperm, triple fusion is necessary for the formation ofA. EmbryoB. EndospermC. SuspensorD. Fruit wall. |
| Answer» Correct Answer - B | |
| 306. |
The process of transfer of pollen grains from anther to stigmatic surface of the flower with the help of water is calledA. AnemophilyB. HydrophilyC. ZoophilyD. Ornithophily. |
| Answer» Correct Answer - B | |
| 307. |
Embryo sac develops from megaspore mother cell throughA. 1 meiosis and 2 mitosesB. 1 meiosis and 3 mitosesC. 1 meiosis and two meiosesD. 2 meioses and 2 mitoses. |
| Answer» Correct Answer - B | |
| 308. |
Which of the following statements is/are correct ? (i) Endothecium lies below epidermis (ii) Fusion of egg with male gamete is called apogamy (iii) Synergids are haploid. (iv) The point at which funicle touches the ovule is raphe.A. a and d onlyB. a and b onlyC. b and d onlyD. a and c only. |
| Answer» Correct Answer - D | |
| 309. |
In angiosperms endosperm is formed byA. Division of fused polar nucleiB.C. Division of fused polar nuclei and male gameteD. Free nuclear divisions of megaspore |
| Answer» Correct Answer - C | |
| 310. |
In double fertilization, male gamete and secondary nucleus formA. EndospermB. GameteC. EmbryoD. Egg. |
| Answer» Correct Answer - A | |
| 311. |
Genetic fertilization involves the fusion of male gamete withA. A synergidB. OosphereC. Central cell and egg apparatusD. Antipodal cell. |
| Answer» Correct Answer - B | |
| 312. |
Female gamete of angiosperms is represented byA. OosporeB. CarpelC. EggD. Pollen grain. |
| Answer» Correct Answer - C | |
| 313. |
Endosperm of angiosperms is produced after fertilization of a male gamete withA. AntipodalsB. SynergidsC. Secondary nucleusD. Oosphere. |
| Answer» Correct Answer - C | |
| 314. |
What would be the number of chromosomes in the cell of the aleurone layer in a plant species with 8 choromosomes in its synergidsA. 8B. 16C. 24D. 32 |
| Answer» Correct Answer - C | |
| 315. |
In Cucumber, pollen tube enters embryo sac throughA. IntegumentsB. MicropyleC. EndospermD. Chalaza. |
| Answer» Correct Answer - A | |
| 316. |
The arrangement of the nuclei in a normal embryo sac in the dicot plants isA. 3 + 3 + 2B. 2 + 4 + 2C. 3 + 2 + 3D. 2 + 3 + 3. |
| Answer» Correct Answer - C | |
| 317. |
In dicots the most common pollen tetrad isA. IsobilateralB. TetrahedralC. LinearD. Decussate. |
| Answer» Correct Answer - B | |
| 318. |
Number of male gametes formed 16 microspore mother cells isA. 128B. 64C. 32D. 16 |
| Answer» Correct Answer - A | |
| 319. |
If there are 1280 microspores in a tetralocular anther. How many microspore mother cells will be there in its each pollen chamberA. 80B. 160C. 240D. 1280 |
| Answer» Correct Answer - A | |
| 320. |
"Isobilateral type" of microspore arrangement in tetrad is present inA. Solanum nigrumB. Zea maysC. Cassia fistulaD. Vigna radiata. |
| Answer» Correct Answer - B | |
| 321. |
In an angiosperm, a female plant having 2n = 24 is crossed with a male plant having 2n = 12. What will be the chromosome number of endospermA. 12B. 18C. 24D. 30 |
| Answer» Correct Answer - D | |
| 322. |
Microspore mother cell formsA. MicrosporangiumB. Pollen sacC. Female gametophyteD. Pollen grains. |
| Answer» Correct Answer - D | |
| 323. |
Intraspecific incompatibility is overcome byA. Mixed pollenationB. Self pollinationC. Wetting of anthersD. Wetting of stigmas. |
| Answer» Correct Answer - A | |
| 324. |
In an angiosperm, the number of microspore mather cells involved in production of 120 male gametes isA. 30B. 60C. 15D. 40 |
| Answer» Correct Answer - C | |
| 325. |
Intraspecific cross pollination isA. AllogamyB. GeitonogamyC. XenogamyD. Autogamy. |
| Answer» Correct Answer - C | |
| 326. |
Cross pollination isA. CleistogamyB. AutogamyC. AllogamyD. Chasmogamy. |
| Answer» Correct Answer - C | |
| 327. |
Which of the following pairs in angiosperms are diploid and triploid respectivelyA. Microspore mother cell and egg cellB. Secondary nucleus and endospermC. Polar nucleus and secondary nucleusD. Endosperm and antipodal cells. |
| Answer» Correct Answer - B | |
| 328. |
Monocotyledonous/wheat seed has one large shield-shasped cotyledon known asA. ColeoptileB. ScutellumC. Aleurone layerD. Coleorhiza. |
| Answer» Correct Answer - B | |
| 329. |
Xenogamy isA. Pollination between two flowers of two different plantsB. Pollination between two different flowers of same plant and same branchC. Pollination between anther and stigma of same flowerD. A mechanism of parthenocarpy. |
| Answer» Correct Answer - A | |
| 330. |
Choose the mismatched optionA. wind - Cannabis - anemophilyB. Water - Zostera - hydrophilyC. Insects - Salvia - entomophilyD. Birds - Adansonia - ornithophily |
| Answer» Correct Answer - D | |
| 331. |
Given below are assertionn and reasonn. Point out if both are true with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion is true but reason is wrong (C), both are wrong (D). Assertion. 7 celled, 8 nucleate and monosparic embryo sac is called Polygonum type of embryo sac. Reason. It was discovered by Hofmeistter for the first time in PolygonumA. AB. BC. CD. D. |
| Answer» Correct Answer - C | |
| 332. |
Which is not a correct explanation of cross pollinationA. Pollen grains of malr flowers are transferred to stigma of female flowersB. Pollen grains are transferred from one flower to another flower of another plant of the same speciesC. Pollen grains are transferred from one flower to another flower situated on the same speciesD. Pollen grains of one flower are transferred to the stigma of the same flower. |
| Answer» Correct Answer - D | |
| 333. |
Give below are assertion and reason. Point out if both are true and reason is correct explanation (A), both true but reason is not correct explanation (B), assertion is true but reason is wrong (C), both are wrong (D). Assertion. Megaspore mother cell undergoes meiosis to produce four megaspores. Reason. Megaspore mother cells and megaspores both are haploidA. AB. BC. CD. D. |
| Answer» Correct Answer - C | |
| 334. |
Given below are assertion and reason. Point out if both are true and reason is correct explanation (A), both are true but reason is not correct explanation (B), assertion is true but reason is wrong (C) and both are wrong (D). Assertion. In apomixis, plants of new genetic sequences are produced. Reason. In apomixis, individuals of same genetic sequence meet.A. AB. BC. CD. D. |
| Answer» Correct Answer - D | |
| 335. |
Which is correctA. Gametes are invariably haploidB. Spores are invariably haploidC. Gametes are generally haploidD. Both spores and gametes are invariably haploid. |
| Answer» Correct Answer - A | |
| 336. |
Formation, growth and development of a new individual beginning from egg is known asA. ApomixisB. EmbryologyC. EmbryogenyD. Cytology. |
| Answer» Correct Answer - B | |
| 337. |
Both, autogamy and geitonogamy are prevented inA. PapayaB. CucumberC. CastorD. Maize. |
| Answer» Correct Answer - A | |
| 338. |
Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both are true but reason is not correct explanation (B), assertion is true but reason is wrong (C) and both are wrong (D) . Assertion. In some species of asteraceae and poaceae, seeds are formed without fertilization Reason. Formation of fruit without fertilization is called parthenocarpyA. AB. BC. CD. D. |
| Answer» Correct Answer - B | |
| 339. |
Anthesis refers to:A. Growth of pollen tube inside the carpelB. Dehiscence of anthersC. Opening of floral budD. Emergence of anthers. |
| Answer» Correct Answer - C | |
| 340. |
One advantange of cleistogamy isA. It leads to greater geneater genetic diversityB. Seed dispersal is more efficient and wide spreadC. Each visit of pollinator brings hundreds of pollen grainsD. Seed set is not dependent upon pollinators. |
| Answer» Correct Answer - D | |
| 341. |
Cleistogamy does not require anthesis becauseA. No pollination anent is requiredB. It assures heterozygosityC. it allows xenogamyD. it favours insect pollination. |
| Answer» Correct Answer - A | |
| 342. |
Attractants and reward are required forA. AnemophilyB. EntomophilyC. HydrophilyD. Cleistogamy. |
| Answer» Correct Answer - B | |
| 343. |
PEN stands forA. Primary endosperm nourishmentB. Primary endosperm nucleusC. Primary embryo nourishmentD. Poly embryo nourishment. |
| Answer» Correct Answer - B | |
| 344. |
An endospermic seed isA. PeaB. BeanC. GramD. Castor. |
| Answer» Correct Answer - D | |
| 345. |
Ovules are attached to a paranchymatous cushion calledA. NucellusB. ObturatorC. Conducting tissueD. Placenta. |
| Answer» Correct Answer - D | |
| 346. |
Which of the following statements about sporopollenin is wrongA. Exine is formed of sporopolleninB. Sporopollenin is not degraded by any known enzymeC. Sporopollenin occurs in the area of germ pores onlyD. Sporopollenin is most resistant organic material. |
| Answer» Correct Answer - C | |
| 347. |
Sporopollenin occurs inA. Female gametophyteB. Male gametophyteC. Vegetative cells of pollen grainD. Exine of pollen wall. |
| Answer» Correct Answer - D | |
| 348. |
Sporopollenin is part ofA. Pollen grain coveringB. Oosphere coveringC. Ovule coveringD. Cell wall. |
| Answer» Correct Answer - A | |
| 349. |
Sporopollenin is formed by polymerisationn ofA. Fat and phenosB. Fats and estersC. Carotenoids and fatD. Carotenoid and esters. |
| Answer» Correct Answer - A | |
| 350. |
Which is agamospermyA. LayeringB. GraftingC. Adventivitive embroyonyD. All the above |
| Answer» Correct Answer - C | |