This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Male gametes in angiosperms are formed inside: A) Pollen tube. B) Anther sac. C) Stigma. D) Ovule. Show Answer Correct Answer: A) Pollen tube. 2. The male organ of a flower has two parts. What are they? A) Stigma and ovary. B) Stamen, and anther. C) Stamen and filament. D) Anther and filament. Show Answer Correct Answer: D) Anther and filament. 3. Ploidy of endothecium, microspore mother cell, tapetum and microspore is respectively: A) N, 2n, 2n, n. B) 2n, 2n, 2n, n. C) N, n, n, 2n. D) 2n, n, 2n, n. Show Answer Correct Answer: B) 2n, 2n, 2n, n. 4. Coleoptile protects A) Plumule. B) Radicle. C) Epicotyl. D) Hypocotyl. Show Answer Correct Answer: A) Plumule. 5. Which structure is responsible for attracting pollinators A) Petals. B) Anther. C) Sigma. D) Ovary. Show Answer Correct Answer: A) Petals. 6. Which agent is most commonly used by grasses? A) Birds. B) Water. C) Biotic agents. D) Wind. Show Answer Correct Answer: D) Wind. 7. In ..... endosperm is a special tissue which is formed as a result of vegetative fertilization A) Gymnosperm. B) Angiosperm. C) Dichosperms. D) Parenchyma. Show Answer Correct Answer: B) Angiosperm. 8. Offspring have a combination of DNA from the parents A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sexual reproduction. 9. Pseudocopulation mechanism of pollination occurs in: A) Ophrys. B) Ficus. C) Mango. D) Maize. Show Answer Correct Answer: A) Ophrys. 10. A typical anther is bilobed, dithecous with four microsponagia however in members of ..... anther is monothecous and bisporangiate. A) Fabaceae. B) Solanaceae. C) Malvaceae. D) Brassicaceae. Show Answer Correct Answer: C) Malvaceae. 11. Spiny or sticky pollen grains and large, attractively coloured flowers are associated with A) Hydrophily. B) Entomophily. C) Ornithophily. D) Anemophily. Show Answer Correct Answer: B) Entomophily. 12. Cross-pollination has the advantage of A) Mutation. B) Polyploidy formation. C) Genetic recombination. D) Crossing over. Show Answer Correct Answer: C) Genetic recombination. 13. In over 60 per cent of angiosperms, pollen grains are shed at the ..... stage. A) Single cell. B) 2-celled. C) 3-celled. D) 4-celled. Show Answer Correct Answer: B) 2-celled. 14. The entry of pollen tube into the ovule through micropyle is: A) Chalazogamy. B) Mesogamy. C) Porogamy. D) Syngamy. Show Answer Correct Answer: C) Porogamy. 15. The endosperm is completely consumed by the developing embryo in ..... A) Coconut. B) Beans. C) Wheat. D) Barley. Show Answer Correct Answer: B) Beans. 16. What is the function of filiform apparatus in an angiospermic embryo sac? A) Brings about opening of the pollen tube. B) Guides the pollen tube into a synergid. C) Prevents entry of more than one pollen tube into a synergid. D) None of these. Show Answer Correct Answer: B) Guides the pollen tube into a synergid. 17. When the pollen grains is mature it contains two cells, the vegetative cell and generative cell. The vegetative cell a.) is biggerb.) spindle shaped c.)has abundant food reserved.) has larger irregularly shaped nucleus A) A, B and C. B) A, C and D. C) A, B, C and D. D) B, C and D. Show Answer Correct Answer: B) A, C and D. 18. What will happen if the stigma of a flower is cut? A) Ovules are not produced. B) Pollen grains cannot be formed. C) Ovary does not develop into a fruit. D) Embryo sac is not developed. Show Answer Correct Answer: C) Ovary does not develop into a fruit. 19. Section D-One-word answers (convert to MCQ):Select the correct one-word term for the nourishing tissue in seeds like cereals. A) Endosperm. B) Aleurone. C) Perisperm. D) Cotyledon. Show Answer Correct Answer: A) Endosperm. 20. Which of the following is a monocarpellary, unilocular ovary with marginal placentation? A) Mustard. B) China rose. C) Tomato. D) Pea. Show Answer Correct Answer: D) Pea. 21. One of the most resistant biological material present in the exine of pollen grain is A) Pectocellulose. B) Sporopollenin. C) Suberin. D) Cellulose. Show Answer Correct Answer: B) Sporopollenin. 22. Embryo sac is located inside the A) Stigma. B) Ovule. C) Micropyle. D) Style. Show Answer Correct Answer: B) Ovule. 23. Pollen tube is produced by A) Exine. B) Intine. C) Both exine & intine. D) Generative cell. E) Sporopollenin. Show Answer Correct Answer: B) Intine. 24. Binary fission in bacteria A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual reproduction. 25. Triploid nuclei will develop into ..... to supply nutrients for the growth of embryo. A) Testa. B) Wall of fruit. C) Endosperm. D) Plumule. Show Answer Correct Answer: C) Endosperm. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 1Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 2Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 3Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 4Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 5Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 6Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 7Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 8Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 9Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books