InterviewSolution
Saved Bookmarks
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.
| 1. |
[A]: Incompatibility is a gene physiological process. [R]: Moderately high temperatures are also known to reduce self incompatibility reaction in certain plants.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - B | |
| 2. |
[A]: Pollination is essential for fertilization. [R]: Abscission or drooping of ovary is prented by pollination.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - B | |
| 3. |
[A]: The colour of flowers in Bougainvillia is due to the coloured bracts. [R]: The flowers of Bougainvillia are largest among the plant kingdom.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - A | |
| 4. |
Assertion : In collateral vascular bundles phloem is situated toward inner side. Reason : In monocot stem, cambium is present .A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - D | |
| 5. |
[A]: Spore mother cells within the anther pollen sacs form four haploid pollen grains. [R]: Spore mother cells divide meiotically to form four haploid pollen grains.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - B | |
| 6. |
[A]: The two sperms cells in a pollen tube often change their shape. [R]: The sperms are released in the synergid as intact cells but only their nuclei migrateA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - B | |
| 7. |
[A]: Pollen grains from male parent are mostly transferred to the stigma in the female parent by some external ageincy. [R]: This is because the male flowers or male organs have no intemal device to reach the female organs in another flowerA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - A | |
| 8. |
[A]: The three cells of the egg apparatus are arranged in a triangular fashion. [R): The degenerating synergid forms the seat for pollen tube discharge in the embryo sacA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - D | |
| 9. |
Assertion. A pollen grain of angiosperm is considered as the male gametophyte . Reason. All the nuclei of the pollen grain produce male gametes.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - C | |
| 10. |
Assertion (A): Many visitors to the hills suffer from skin and respiratory allergy problems. Reason (R): Conifer trees produce a large quantity of wind- borne pollen grains.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - B | |
| 11. |
[A]: The secondary pholem consititutes a less poriment part of the tree trunk than the secondry xylem [R] : The amount of Phloem produced by the cambium is smaller than that of secondayA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - A | |
| 12. |
[A]: The endosperm contai_ns the triploid number of chromosomes. [R]: The endosperm is formed as a result of fusion of two polar nuclei and one of the male nucleiA. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - A | |
| 13. |
Assertion. In apomixis , plants of new genetic sequence are produced. Reason. In apomixis , two individuals of same genetic sequence meet .A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - D | |
| 14. |
[A]: Triple fusion results in veg~tative fertiliza- tion of angiosperms. [R]: It combines one male gamete with two synergids.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - C | |
| 15. |
[A]: The biennial plants live for two years. [R]: They flower in both years.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - C | |
| 16. |
[A] : Synandrous condition is found in curcurbits. [R] : The male flower of curcurbits, generally, contains five stamens which are laterally fused (anthers and filaments both).A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true and R is falseD. If both A and R are false |
| Answer» Correct Answer - A | |