This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Autogamy stands for A) Pollination in same flower. B) Pollination between different plants. C) Pollination in two flowers of same plant. D) Division in embryo. Show Answer Correct Answer: A) Pollination in same flower. 2. The seed coat develops from A) Embryo sac. B) Inner integument. C) Nucellus. D) Outer integument. Show Answer Correct Answer: D) Outer integument. 3. Nucellus forms which of the following part of a fruits? A) Raphe. B) Seed. C) Perisperm. D) Seed coat. Show Answer Correct Answer: C) Perisperm. 4. If each microsporangium, in a typical angiospermic anther consists of 40 microspore/pollen mother cells, the number of pollen grains that can be produced from this anther will be A) 80. B) 160. C) 320. D) 640. Show Answer Correct Answer: D) 640. 5. Amongst the insects the dominant biotic pollinating agents are A) Ants. B) Wasps. C) Beetles. D) Bees. Show Answer Correct Answer: D) Bees. 6. The first cell of sporophytic generation is: A) Embryo. B) Endosperm. C) Zygote. D) Megaspore. Show Answer Correct Answer: C) Zygote. 7. The nucellus persist in the seeds of ..... A) Pea. B) Groundnut. C) Black pepper. D) Barley. Show Answer Correct Answer: C) Black pepper. 8. First cell of the gametophytic generation is: A) Megaspore. B) Zygote. C) Nucellus. D) Embryo. Show Answer Correct Answer: A) Megaspore. 9. The product of fertilization is A) Zygote. B) Embryo. C) Endosperm. D) Cotyledons. Show Answer Correct Answer: A) Zygote. 10. Hardest substance in plant kingdom is A) Saple. B) Corolla. C) Sporopollenin. D) Anther. Show Answer Correct Answer: C) Sporopollenin. 11. Pollen grain is surrounded by a two layered wall called ..... A) Sporoderm. B) Mesoderm. C) Endoderm. D) None. Show Answer Correct Answer: A) Sporoderm. 12. An organic compound that can withstand environmental extremes and cannot be degraded by any enzyme is: A) Cuticle. B) Sporopollenin. C) Lignin. D) Cellulose. Show Answer Correct Answer: B) Sporopollenin. 13. What is the site of attachment of filament of anther in flower? A) Calyx. B) Corolla. C) Thalamus. D) Both B and C. Show Answer Correct Answer: D) Both B and C. 14. Fragrant flowers with well-developed nectaries areadaptation for A) Hydrophily. B) Anemophily. C) Entomophily. D) None of these. Show Answer Correct Answer: C) Entomophily. 15. Number of germ pore in monocots A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 16. Occurrence of more than one embryo in a seed is referred to as A) Apomixis. B) Parthenogenesis. C) Polyembryony. D) Embryogeny. Show Answer Correct Answer: C) Polyembryony. 17. Along with the tube nucleus, how many male gametes does the Pollen tube carry A) 2 male gametes. B) 1 male gamete. C) 3 male male gametes. D) No male gametes. Show Answer Correct Answer: A) 2 male gametes. 18. Section D-One-word answers (convert to MCQ):Select the correct one-word term for the fusion of male gamete with egg. A) Syngamy. B) Double fertilization. C) Parthenogenesis. D) Somatogamy. Show Answer Correct Answer: A) Syngamy. 19. How many PMCs should undergo meiotic division to produce 64 pollen grains A) 64. B) 32. C) 16. D) 8. Show Answer Correct Answer: C) 16. 20. Assertion:Pollen mother cells (PMCs) are the first male gametophytic cells. Reason:Each PMC gives rise to two pollens A) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. B) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C) If Assertion is true but Reason is false. D) If both Assertion and Reason are false. Show Answer Correct Answer: D) If both Assertion and Reason are false. 21. Which of the following is true about double fertilization in flowering plants? A) Two sperm nuclei fuse with one egg cell. B) Two sperm nuclei fuse with two egg cell. C) Two sperm nuclei fuse with an egg cell and polar nuclei respectively. D) One sperm nucleus fuse with an egg cell and a polar nucleus. Show Answer Correct Answer: C) Two sperm nuclei fuse with an egg cell and polar nuclei respectively. 22. 60% of the angiosperms shed the pollen grains at A) 2-celled stage. B) 3-Celled stage. C) 4-celled stage. D) 8-celled stage. Show Answer Correct Answer: A) 2-celled stage. 23. A plant has either male or female flowers, not both. A) A dioecious plant. B) A monoecious plant. C) All the above. D) None of the above. Show Answer Correct Answer: A) A dioecious plant. 24. The portion of embryonal axis between plumule ( future shoot ) and cotyledons is called A) Hypocotyl. B) Epicotyl. C) Coleorhiza. D) Coleoptile. Show Answer Correct Answer: B) Epicotyl. 25. In monocot, the ..... end produces the suspensor cells A) Micropylar. B) Hilum. C) Coleoptile. D) Coleorhiza. Show Answer Correct Answer: A) Micropylar. ← 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