This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which part of the seed contains starch and acts as food reserves? A) Testa. B) Micropyle. C) Cotyledon. D) Radicle. Show Answer Correct Answer: C) Cotyledon. 2. From the statements given below choose the option that are true for a typical female gametophyte of a flowering plant.1. It is 8-nucleate and 7-celled at maturity.2. It is free nuclear during the development.3. It is situated inside the integument but outside the nucellus.4. It has an egg apparatus situated at the chalazal end. A) 1 and 4. B) 2 and 3. C) 1 and 2. D) 2 and 4. Show Answer Correct Answer: C) 1 and 2. 3. Budding in hydra A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual reproduction. 4. Patterns and designs of exine of pollen grains are the characteristic features of A) Species of plant. B) Genus of plants. C) Order of plants. D) None of these. Show Answer Correct Answer: A) Species of plant. 5. How many megaspores are functional out of 4 A) 1. B) 2. C) 3. D) All 4. Show Answer Correct Answer: A) 1. 6. Which of the following statements are true for flowers?(i) Flowers are always bisexual(ii) They are the sexual reproductive organs(iii) They are produced in all groups of plants(iv) After fertilization they give rise to fruits A) (i) and (iv). B) (ii) and (iii). C) (i) and (iii). D) (ii) and (iv). Show Answer Correct Answer: D) (ii) and (iv). 7. Which of the following is incorrect about embryosac A) Embryo sac is covered by nucellus. B) Nucellus provides the nutrients to growing embryo. C) Embryo sac is covered with sporopollenin. D) Generally only one embryo sac is present in the ovule. Show Answer Correct Answer: C) Embryo sac is covered with sporopollenin. 8. From among the situations given below, choose the one that prevents both autogamy and geitonogamy A) Monoecious plant bearing unisexual flowers. B) Dioecious plant bearing only male or female flowers. C) Monoecious plant with bisexual flowers. D) Dioecious plant with bisexual flowers. Show Answer Correct Answer: B) Dioecious plant bearing only male or female flowers. 9. How many nuclei are present in the embryo sac before double fertilisation occur? A) 2. B) 4. C) 8. D) 16. Show Answer Correct Answer: C) 8. 10. Sexual reproduction involves pollen touching the stigma to fertilize an ovary A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. My flowers are not sweet-scented and I do not produce nectar. How am I likely dispersed by? A) By wind. B) By insects. C) By water. D) By explosive action. Show Answer Correct Answer: A) By wind. 12. Endosperm development preceds ..... development A) Pollen tube. B) Nuclei. C) Embryo. D) Micropyle. Show Answer Correct Answer: C) Embryo. 13. Which is most crucial for seed storage? A) Dehydration and dormancy. B) Endosperm and water. C) Least amount of development. D) Endosperm in large quantity. Show Answer Correct Answer: A) Dehydration and dormancy. 14. The portion of embryonal axis above the level of cotyledons is A) Radicle. B) Plumule. C) Epicotyl. D) Hypocotyl. Show Answer Correct Answer: C) Epicotyl. 15. Seeds of an orange when taken out and squeezed, show many embryos of different sizes and shapes. The reason for this is as many emryos have developed from: A) Egg cells fusing with different male gametes forming embryos. B) PEN fusing with different male gametes forming embryos. C) Nucellar cells dividing and developing into embryos. D) Synergids dividing and developing into embryos. Show Answer Correct Answer: C) Nucellar cells dividing and developing into embryos. 16. The function of filiform apparatus is to A) Recognize the suitable pollen at stigma. B) Stimulate division of generative cell. C) Produce nectar. D) Guide the entry of pollen tube. Show Answer Correct Answer: D) Guide the entry of pollen tube. 17. Section C-True or False:Polyembryony means multiple embryos in a single seed. Choose True or False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. What is Pollination?Pollination is the transfer of (?) grains from (?) to (?). A) Pollen, stamen, anther. B) Pollen, anther, stigma. C) Pollen, anther, ovary. D) Pollen, stamen, ovary. Show Answer Correct Answer: B) Pollen, anther, stigma. 19. Microspore tetrads are formed by: A) Mitosis. B) Meiosis. C) Syngamy. D) Fusion. Show Answer Correct Answer: B) Meiosis. 20. Which of the following represents arrangement of layers from outer side to innermost layers of Microsporangum A) Tapetum, Middle layers, Endothecium, Epidermis. B) Tapetum, Middle layers, Epidermis, Endothecium. C) Epidermis, Endothecium, Middle layers, Tapetum. D) Endothecium, Epidermis, Middle layers, Tapetum. Show Answer Correct Answer: C) Epidermis, Endothecium, Middle layers, Tapetum. 21. All the four whorls are present ( Petals, Sepals, Stamen, Pistil) A) Incomplete. B) Complete. C) Unisexual. D) None of the above. Show Answer Correct Answer: B) Complete. 22. Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called A) Xenogamy. B) Geitonogamy. C) Karyogamy. D) Autogamy. Show Answer Correct Answer: B) Geitonogamy. 23. The anther wall consists of four wall layers where A) Tapetum lies just inner to endothecium. B) Middle layers lie between endothecium and tapetum. C) Endothecium lies inner to middle layers. D) Tapetum lies next to epidermis. Show Answer Correct Answer: B) Middle layers lie between endothecium and tapetum. 24. Anemophilous plants have A) Sticky stigma. B) Feathery stigmas. C) Colorful flower. D) Prominent nectaries. Show Answer Correct Answer: B) Feathery stigmas. 25. Wind-pollinated flowers have large and feathery stigmas to catch pollen grains and hang outside the flower. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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