This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A plant with single ovule in the ovary is seen in ..... A) Wheat. B) Paddy. C) Papaya. D) Mango. Show Answer Correct Answer: C) Papaya. 2. Which process is nature cloning itself? A) Somatic Transfer. B) Mitosis. C) Meiosis. D) Photosynthesis. Show Answer Correct Answer: B) Mitosis. 3. The carpel or pistil is made of the A) Stigma & petals. B) Stigma, style & ovary. C) Filament & anther. D) Petals. Show Answer Correct Answer: B) Stigma, style & ovary. 4. The method of embryo sac formation in flowering plants is termed as A) Monosporic Development. B) Disporic Development. C) Tetrasporic Development. D) Trisporic Development. Show Answer Correct Answer: A) Monosporic Development. 5. In entomophily, flowers are A) Dull coloured. B) Nectarless. C) With sticky pollen grains. D) Small sized solitary. Show Answer Correct Answer: C) With sticky pollen grains. 6. In a typical seed, the portion of the embryonal axis above the level of cotyledons is called ..... A) Hypocotyl. B) Epicotyl. C) Coleorhiza. D) Coleoptile. Show Answer Correct Answer: B) Epicotyl. 7. Birds, humans and other small animals are the main agents of pollination. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. What triggers the synthesis of enzymes capable of digesting food reserves in seeds? A) Water absorption. B) Gibberellin. C) Photosynthesis. D) Dormancy. Show Answer Correct Answer: B) Gibberellin. 9. A dioecious flowering plants prevents both: A) Autogamy and geitonogamy. B) Geitonogamy and Xenogamy. C) Cleistogamy and xenogamy. D) Autogamy and xenogamy. Show Answer Correct Answer: A) Autogamy and geitonogamy. 10. Name 2 nuclei in an embryo sac that involved in fertilisation with male gametes? A) Antipodal cell & synergid cell. B) Polar nuclei & antipodal cell. C) Synergid cell & egg cell. D) Egg cell & polar nuclei. Show Answer Correct Answer: D) Egg cell & polar nuclei. 11. In angiosperms various stages of reductional division can best be studied in A) Young anthers. B) Mature anthers. C) Young ovules. D) Endosperm cells. Show Answer Correct Answer: A) Young anthers. 12. Polyembryony was discovered by: A) Nawaschin. B) Sporri. C) Strasburger. D) Leeuwenhoek. Show Answer Correct Answer: B) Sporri. 13. What is the function of a pollen tube? A) To produce pollen. B) To transport sperm to the ovule. C) To disperse seeds. D) To attract pollinators. Show Answer Correct Answer: B) To transport sperm to the ovule. 14. The innermost wall layer of microsporangium is the ..... which nourishes the developing pollen grains. A) Epidermis. B) Middle layer. C) Tapetum. D) Endothecium. Show Answer Correct Answer: C) Tapetum. 15. The functional megaspore develops into: A) Embryo. B) Endosperm. C) Embryo sac. D) Egg. Show Answer Correct Answer: C) Embryo sac. 16. Identify those that are associated with the gynoecium A) Stigma, ovule, embryo sac, placenta. B) Thalamus, pistil, style, ovule. C) Ovule, ovary, embryo sac, tapetum. D) Ovule, stamen, ovary, embryo sac. Show Answer Correct Answer: A) Stigma, ovule, embryo sac, placenta. 17. The fusion of gametes is called A) Pollination. B) Fertilization. C) Vegetative propagation. D) Binary fusion. Show Answer Correct Answer: B) Fertilization. 18. In geitonogamy pollen grains are transferred to A) Genetically different flower. B) Genetically similar flower. C) Stigma of same flower. D) Flower of another plant. Show Answer Correct Answer: B) Genetically similar flower. 19. In which of the following plants show epihydrophily type of pollination? A) Vallisneria. B) Sea grass. C) Lotus. D) Alisma. Show Answer Correct Answer: A) Vallisneria. 20. Pollens have two prominant walls which are ..... A ..... and ..... B ..... Here A and B refers to A) A-intine, B-protein coat. B) A-exine, B-intine. C) A-sporopollenin, B-intine. D) A-sporopollenin, B-exine. Show Answer Correct Answer: B) A-exine, B-intine. 21. Refer to the given statements. (i) Both wind and water pollinated flowers are not verycolourful and do not produce nectar. (ii) Entomophilous flowers are large, colourful, fragrantand rich in nectar. (iii) Kigelia pinnata is an insect pollinated flower. Which of the above statements is/are incorrect? A) (i) only. B) (ii) only. C) (Iii) only. D) (i), (ii) and (iii). Show Answer Correct Answer: C) (Iii) only. 22. How many cells does a pollen grain have when it is matured? A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: D) 2. 23. Dichogamy means A) Pollen release and stigma receptivity are not synchronized. B) Placement of stamen and pistil at different levels. C) Prevention of Self-pollination. D) Production of Unisexual Flowers. Show Answer Correct Answer: A) Pollen release and stigma receptivity are not synchronized. 24. Coconut endosperm is: A) Solid. B) Liquid. C) Both A & B. D) Absent. Show Answer Correct Answer: C) Both A & B. 25. I have long and feathery stigma that sticks out of the flower. How am I likely to be pollinated by? A) By wind. B) By insects. C) By water. D) By explosive action. Show Answer Correct Answer: A) By wind. ← 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