This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A flower of tomato plant following the process of sexual reproduction 300 seeds.What is the minimum number of pollen grains that must have been involved in the pollination of its pistil? A) 600. B) 1200. C) 300. D) 150. Show Answer Correct Answer: C) 300. 2. Penetration of pollen tube into ovule is: A) Autogamy. B) Fertilization. C) Germination. D) Porogamy. Show Answer Correct Answer: D) Porogamy. 3. Which of the following is a true fruit? A) Apple. B) Mango. C) Strawberry. D) Banana. Show Answer Correct Answer: B) Mango. 4. Which of the following statements best describes double fertilisation? A) A male gametes fertilises an egg cell while another male gametes fertilises a polar nucleus. B) A male gametes fertilises an egg cell and two fused polar nuclei. C) A male gametes fertilises two fused polar nuclei. D) A male gametes fertilises an egg while another male gametes fertilises two polar nuclei. Show Answer Correct Answer: D) A male gametes fertilises an egg while another male gametes fertilises two polar nuclei. 5. Diploid Microspore Mother cell undergoes ..... division to form haploid microspores A) Meiotic. B) Mitotic. C) Both of the above. D) None of the above. Show Answer Correct Answer: A) Meiotic. 6. Which of the following are the conditions for germination? A) Water and oxygen only. B) Water, oxygen and suitable temperature only. C) Water, carbon dioxide and suitable temperature only. D) Carbon dioxide and suitable temperature only. Show Answer Correct Answer: B) Water, oxygen and suitable temperature only. 7. Process in which seeds develop unfertilised female gamete A) Polyembryony. B) Agamospermy. C) Apomixis. D) Parthenogenesis. Show Answer Correct Answer: D) Parthenogenesis. 8. What is fertilisation in plant? A) The nucleus of the sperm fuses with the egg. B) The nucleus of the pollen grain enter the ovule and fuses with the egg. C) The nucleus of the sperm enter the stigma. D) The nucleus of the pollen grain enter the tube. Show Answer Correct Answer: B) The nucleus of the pollen grain enter the ovule and fuses with the egg. 9. Mesogamy is A) Fusion of male and female gametes. B) Fusion of physiologically similar and morphologically different gametes. C) Entry of pollen tube through integuments. D) None of the above. Show Answer Correct Answer: C) Entry of pollen tube through integuments. 10. Most common type of embryo sac: A) Bisporic. B) Monosporic. C) Tetrasporic. D) Polyspermic. Show Answer Correct Answer: B) Monosporic. 11. Pollen grains can be stored for several years in liquid nitrogen having temperature of A) -196$^\circ$C. B) -80$^\circ$C. C) -120$^\circ$C. D) -160$^\circ$C. Show Answer Correct Answer: A) -196$^\circ$C. 12. Plants with ovaries having only one or few ovules, are generally pollinated by A) Bees. B) Butterflies. C) Birds. D) Wind. Show Answer Correct Answer: D) Wind. 13. What do we call sex cells?Hint:This applies to plants AND animals. A) Spores. B) Eggs. C) Gametes. D) Pollen. Show Answer Correct Answer: C) Gametes. 14. The type of fertilization in which the male gamete penetrates into the ovule (egg) but fails to fuse with the egg nucleus is known as A) Semigamy. B) Syngamy. C) Apomixis. D) Polyspermy. Show Answer Correct Answer: A) Semigamy. 15. Which one of the following is correct for aquatic plants? A) All aquatic plants use water for pollination. B) Not all aquatic plants use water for pollination. C) Vallisneria flowers are pollinated by water under the water surface. D) All the above. Show Answer Correct Answer: B) Not all aquatic plants use water for pollination. 16. Intine of pollen grains is composed of: A) Lipid and protein. B) Cellulose and pectin. C) Lignin and cutin. D) Pectin and lignin. Show Answer Correct Answer: B) Cellulose and pectin. 17. How many megaspore mother cells are required to produce 100 eggs during meiosis? A) 25. B) 50. C) 100. D) 400. Show Answer Correct Answer: C) 100. 18. Following is not an example of outbreeding device A) Protandry. B) Protogyny. C) Self incompability. D) Bisexuality. Show Answer Correct Answer: D) Bisexuality. 19. A microspore mother cells forms: A) An ovule. B) An embryo sac. C) A pollen sac. D) Pollen grains. Show Answer Correct Answer: D) Pollen grains. 20. The body of ovule is fused within the funicle at: A) Micropyle. B) Hilum. C) Nucellus. D) Chalaza. Show Answer Correct Answer: B) Hilum. 21. What is the primary function of reproduction in plants? A) To produce flowers. B) To produce new plants. C) To grow taller. D) To change colour. Show Answer Correct Answer: B) To produce new plants. 22. To some extent the viability of pollen grains depends on: A) Temperature. B) Humidity. C) Both 1 and 2. D) Light. Show Answer Correct Answer: C) Both 1 and 2. 23. Pollen grain consists of vegetative cell and generative cell. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. Anther is generally ..... (having two lobes) and ..... A) Monothecous and unisporangiate. B) Dithecous and tetrasporangiate. C) Dithecous and uniaporangiate. D) A. monothecous and tetrasporangiate. Show Answer Correct Answer: B) Dithecous and tetrasporangiate. 25. Which of the following is a type of pollination adapted for wind? A) Autogamy. B) Xenogamy. C) Geitonogamy. D) Cleistogamy. Show Answer Correct Answer: B) Xenogamy. ← 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