This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Perisperm is A) Outer covering of seed. B) Outer covering of stem. C) Found in the bark. D) Residual persistent nucellus. Show Answer Correct Answer: D) Residual persistent nucellus. 2. SECTION B-FILL IN THE BLANKS. Fill in the blank:The nutritive tissue in anther that nourishes microspores is ..... A) Tapetum. B) Endothecium. C) Pollen sac. D) Nucellus. Show Answer Correct Answer: A) Tapetum. 3. An anther having four microsporocytes shall produce pollen grains A) 24. B) 12. C) 8. D) 16. Show Answer Correct Answer: D) 16. 4. Which of the following is not a characteristic of Anemophilous flower? A) Flowers are odourless, nectarless and colourless. B) Calyx and corolla are reduced or absent. C) Flowers are large and conspicuous. D) Pollen grains are small, smooth, non sticky and light. Show Answer Correct Answer: C) Flowers are large and conspicuous. 5. Stalk of flower A) Peduncle. B) Pedicle. C) Filament. D) Style. Show Answer Correct Answer: B) Pedicle. 6. Mark the odd one out with respect to polyembryony A) Striga. B) Orobanche. C) Orange. D) None. Show Answer Correct Answer: D) None. 7. The outer layer exine is thick and made up of complex, non-biodegradable, substance called ..... A) Sporoderm. B) Sporopollenin. C) Sporangia. D) Sporophyll. Show Answer Correct Answer: B) Sporopollenin. 8. In angiosperms, microsporogenesis and megasporogenesis A) Occur in anther. B) Form gametes without further divisions. C) Involves meiosis. D) Occur in ovule. Show Answer Correct Answer: C) Involves meiosis. 9. The fibrous thickenings of endothecium are in the form of ..... bands. A) Tangential. B) Spiral. C) Radial. D) Annular. Show Answer Correct Answer: A) Tangential. 10. Double fertilisation was first discovered in 1898 by inFritillaria and Lilium. A) Nawaschin. B) Amici. C) Strasburger. D) Focke. Show Answer Correct Answer: A) Nawaschin. 11. What are the common features in gametes, spores and the gametophyte generation? A) They are all diploid. B) They are all haploid. C) They are limited to vascular plants. D) They have nothing in common. Show Answer Correct Answer: B) They are all haploid. 12. The pollination which is functionally cross pollination but genetically self pollination A) Autogamy. B) Geitonogamy. C) Xenogamy. D) Allogamy. Show Answer Correct Answer: B) Geitonogamy. 13. What is the structure that develops male gametophytes in flowering plants? A) Ovule. B) Endosperm. C) Pistil. D) Microsporangium. Show Answer Correct Answer: D) Microsporangium. 14. SECTION B-FILL IN THE BLANKS. Development of embryo from nucellus is called ..... A) Adventive embryony. B) Parthenogenesis. C) Somatic embryogenesis. D) Androgenesis. Show Answer Correct Answer: A) Adventive embryony. 15. What is the reproductive part of angiosperms called? A) Flower. B) Root. C) Stem. D) Leaf. Show Answer Correct Answer: A) Flower. 16. In the formation of embryo sac, only ..... megaspore (n) is developed into 8 nuclei. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 17. What is the fate of male gametes after entering the embryo sac? A) One male gamete fuse with egg cell and another male gamete fuses with synergids. B) One male gamete fuse with the synergid and another male gamete fuses with egg cell. C) One male gamete fuse with antipodal cell and another male gamete fuses with the egg cell. D) One male gamete fuse with the egg cell and another male gamete fuses with the polar nuclei. Show Answer Correct Answer: D) One male gamete fuse with the egg cell and another male gamete fuses with the polar nuclei. 18. Callase enzyme which dissolved callose of pollen tetrads to separate 4 pollens is provided by: A) Pollens. B) Tapetum. C) Middle layers. D) Endothecium. Show Answer Correct Answer: B) Tapetum. 19. Removal of anther from the bud stage from a bisexual plant is called A) Bagging. B) Emasculation. C) Artificial hybridization. D) Selfing. Show Answer Correct Answer: B) Emasculation. 20. Angiosperms flower A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. Section D-One-word answers (convert to MCQ):Select the correct one-word term for entry of the pollen tube through the chalaza. A) Chalazogamy. B) Porogamy. C) Mesogamy. D) Cleistogamy. Show Answer Correct Answer: A) Chalazogamy. 22. Second whorl A) Petal. B) Sepal. C) Stamen. D) Pistil. Show Answer Correct Answer: A) Petal. 23. Single ovule in each ovary is seen in which type of agent of pollination A) Water. B) Bats. C) Biotic. D) Wind. Show Answer Correct Answer: D) Wind. 24. A flower with both male and female reproductive parts A) Unisexual. B) Incomplete. C) Pass Interference. D) Hermaphrodite or bisexual. Show Answer Correct Answer: D) Hermaphrodite or bisexual. 25. Special type of tissue, present in synergids which escort entry of pollen tube into ovule is A) Nucellus. B) Sporogenous tissue. C) Filiform apparatus. D) Archesporium. Show Answer Correct Answer: C) Filiform apparatus. ← 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