This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Section D-One-word answers (convert to MCQ):Select the correct one-word term for natural seedless fruit formation. A) Parthenocarpy. B) Apomixis. C) Polyembryony. D) Parthenogenesis. Show Answer Correct Answer: A) Parthenocarpy. 2. Fruit X is fleshy and bright-red in colour. The likely dispersal method for its seeds is by ..... A) Animal. B) Wind. C) Water. D) Splitting. Show Answer Correct Answer: A) Animal. 3. Pollen kits is generally found in A) Anemophilous flowers. B) Entomophilous flowers. C) Ornithophilous flovvers. D) Malacophilous flowers. Show Answer Correct Answer: B) Entomophilous flowers. 4. Pollen grain is made up of two layers, outer ..... & inner ..... respectively A) Intine, Exine. B) Exine, Intine. C) Protein coats, Pollenin. D) None of the above. Show Answer Correct Answer: B) Exine, Intine. 5. Callase enzymes is produce by: A) Tapetum. B) Pollen. C) Endothecium. D) Middle layer. Show Answer Correct Answer: A) Tapetum. 6. Offspring are a blend or mix of DNA from parents A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sexual reproduction. 7. Coconut water is ..... endosperm A) Free-nuclear. B) Cellular. C) PEN. D) Nuclei. Show Answer Correct Answer: A) Free-nuclear. 8. A complete pollen grain consists of ..... A) Tube nucleus only. B) Generative nucleus only. C) Tube nucleus and generative nucleus. D) Male gametes. Show Answer Correct Answer: C) Tube nucleus and generative nucleus. 9. Gynoecium stands for which part of the angiosperm flower? A) Female unit. B) Male unit. C) Corolla. D) None of the above. Show Answer Correct Answer: A) Female unit. 10. Cotyledon of maize grain is called A) Scutellum. B) Plumule. C) Coleoptile. D) Coleorhiza. Show Answer Correct Answer: A) Scutellum. 11. There are no genetic differences in the offspring A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual reproduction. 12. In the flowering plants, male and female gametes both are A) Motile. B) Non-motile. C) Diploid. D) Very large. Show Answer Correct Answer: B) Non-motile. 13. Microsporangium develops in to A) Pollen grains. B) Microgametes. C) Megagametes. D) Pollen sac. Show Answer Correct Answer: D) Pollen sac. 14. Wind pollination requires that the pollen grains should be ..... so that they can be transported in wind currents. A) Light. B) Non sticky. C) Sticky. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 15. Mark the structure which facilitates entry of oxygen and water into the seed during germination. A) Testa. B) Tegmen. C) Micropyle. D) Seed coat. Show Answer Correct Answer: C) Micropyle. 16. Pollination that occurs in between the different flowers of two or more different plants but belongs to the same species (Note-Not in the same plant) A) Self pollination. B) Cross pollination. C) All the above. D) None of the above. Show Answer Correct Answer: B) Cross pollination. 17. Each microsporangium has four types of wall layers. Which one of the following is the correct combination of wall layers? A) EpidermisEndodermisMiddle layersTapetum. B) EpidermisEndotheciumMiddle layersTapetum. C) EpidermisEndometriumMiddle layersTapetum. D) EpidermisEndodermisParietal cell layersTapetum. Show Answer Correct Answer: A) EpidermisEndodermisMiddle layersTapetum. 18. Cleistogamous flowers are strictly autogamous because they remain A) Always open. B) Always closed. C) Always fragrant. D) Brightly coloured. Show Answer Correct Answer: B) Always closed. 19. Select the correct option regarding the ploidy level of different structures of an angiospermous ovule. Nucellus MMC Functional megaspore A) N 2n 2n. B) 2n n n. C) 2n 2n n. D) N 2n n. Show Answer Correct Answer: C) 2n 2n n. 20. The process of reproduction involving a single parent that results in offspring that are genetically identical to the parent? A) Asexual reproduction. B) Fertilization. C) Sexual reproduction. D) Tissue. Show Answer Correct Answer: A) Asexual reproduction. 21. ..... of the pollen grains divide to form two male gametes A) Microspore mother cell. B) Vegetative cell. C) Generative cell. D) None of these. Show Answer Correct Answer: C) Generative cell. 22. Sexual Reproduction involves fusion of two ..... A) Gametes. B) Compatible gametes. C) Individuals. D) None of the above. Show Answer Correct Answer: B) Compatible gametes. 23. What type of flowers can produce seed-set without pollinators? A) Cleistogamous flowers. B) Chasmogamous flowers. C) Both cleistogamous and chasmogamous flowers. D) None of the above. Show Answer Correct Answer: A) Cleistogamous flowers. 24. Mass of cells enclosed by integuments is called A) Nucellus. B) Embryo. C) Ova. D) Pollen. Show Answer Correct Answer: A) Nucellus. 25. SECTION B-FILL IN THE BLANKS. The middle cell of embryo sac is the ..... A) Central cell. B) Egg cell. C) Synergid. D) Antipodal cell. Show Answer Correct Answer: A) Central cell. ← 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