Biology Practice: Pollination and Fertilization (Mock Test 4 - Expert/Experimental Logic)
1. In an experimental setup, a student removes the stamens of a bisexual flower before they mature. Which process has been performed?
2. If a pollen grain with a genotype 't' lands on a stigma of a plant with genotype 'TT', what will be the genotype of the resulting endosperm?
3. A farmer observes that his corn (Maize) crop has very light, non-sticky pollen and long, feathery stigmas. This is a clinical adaptation for:
4. Why is a butter-paper bag used in artificial hybridization experiments after emasculation?
5. If 100 grains of wheat are to be produced, how many meiotic divisions are theoretically required in the parent plants?
6. A scientist treats a stigma with a chemical that inhibits protein synthesis. The pollen tube fails to grow. This confirms:
7. In some species, the pollen is shed at the 3-celled stage. These cells are:
8. Which structure represents the "Basal part" of the ovule where integuments originate?
9. During a laboratory observation, a student sees a pollen tube entering the ovule through the integuments. This is known as:
10. What is the clinical significance of "Sporopollenin"?
11. A plant has a diploid number $2n = 24$. What is the chromosome number in its endosperm?
12. Which of the following is NOT a characteristic of Entomophilous flowers?
13. In a data-based study, it was found that species 'X' has stigmas maturing before anthers. This is:
14. What happens if a pollen grain from a different species lands on a stigma?
15. The stalk of the flower is called the ______ while the stalk of the ovule is the ______.
16. The "Double" in Double Fertilization refers to:
17. Which of these is a biotic agent of pollination that works primarily at night?
18. If the definitive nucleus has 18 chromosomes, how many chromosomes are in the leaf cell of the same plant?
19. In "Kigelia" (Sausage tree), pollination is primarily mediated by:
20. The part of the seed that stores food in "Albuminous" seeds is: