This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which one is female gametophyte? A) Egg. B) Ovule. C) Embryo sac. D) Ovary. Show Answer Correct Answer: C) Embryo sac. 2. What is the name used when the pollen and the ovule join together to make a seed? A) Condensation. B) Nutrition. C) Germination. D) Fertilisation. Show Answer Correct Answer: D) Fertilisation. 3. Section C-True or False:Antipodals are present at micropylar end. Choose True or False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Which of these is a condition that makes flowers invariablyautogamous? A) Dioecy. B) Self incompatibility. C) Cleistogamy. D) Xenogamy. Show Answer Correct Answer: C) Cleistogamy. 5. Occurrence of more than one embryo is called A) Polyembryony. B) Embryony. C) Parthenogenesis. D) Fertilisation. Show Answer Correct Answer: A) Polyembryony. 6. Embryo of flowering plants is always: A) Haploid (n). B) Diploid (2n). C) Triploid (3n). D) Tetraploid (4n). Show Answer Correct Answer: B) Diploid (2n). 7. Coleorrhiza protects A) Plumule. B) Radicle. C) Epicotyl. D) Hypocotyl. Show Answer Correct Answer: B) Radicle. 8. The male reproductive whorl of flower is called ..... A) Stamen. B) Androecium. C) Anther. D) Pollen. Show Answer Correct Answer: B) Androecium. 9. Megasporogenesis is formation A) Fruit. B) Seed. C) Megaspore. D) Microspore. Show Answer Correct Answer: C) Megaspore. 10. Which one is male gametophyte? A) Pollen sac. B) Pollen grain. C) Anther. D) Stamen. Show Answer Correct Answer: B) Pollen grain. 11. A mature female gametophyte contains which stage? A) 7-celled and 8-nucleated stage. B) 8-nucleated and 7-celled stage. C) 7-celled and 7-nucleus stage. D) None of the above. Show Answer Correct Answer: A) 7-celled and 8-nucleated stage. 12. Total number of microsporangia present in a dithecous anther are A) 4. B) 6. C) 2. D) 1. Show Answer Correct Answer: A) 4. 13. Below are what happen during germination:1. Plumule comes out of cotyledon2. First green leaves comes out3. Radicle grows out from the seedWhat is the correct for germination? A) 3-1-2. B) 1-2-3. C) 3-2-1. D) 1-3-2. Show Answer Correct Answer: A) 3-1-2. 14. Which of the following options is correct? A) Transfer of pollen grains from the anther to the stigma of the same flower-Autogamy. B) Transfer of pollen grains from the anther of one flower to the stigma of another flower of same plant Geitonogamy. C) Transfer of pollen grains from the anther to the stigma of a genetically different plant of same species-Xenogamy. D) All of these. Show Answer Correct Answer: D) All of these. 15. Below are four statements about ANTHER. Find the incorrect statement. A) Anther may be single lobed or two lobed. B) A bilobed anther is tetrasporangiate. C) Microsporangium develops from hypodermal cell called archesporial cell. D) Each anther lobe bears one microsporangium. Show Answer Correct Answer: D) Each anther lobe bears one microsporangium. 16. Section C-True or False:Embryo sac is haploid. Choose True or False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as A) Autogamy. B) Parthenocarpy. C) Syngamy. D) Parthenogenesis. Show Answer Correct Answer: D) Parthenogenesis. 18. The major cause of pollen allergy is due to A) Pistia. B) Cladophora. C) Parhenium. D) Mirabilis. Show Answer Correct Answer: C) Parhenium. 19. During embryo sac formation nuclear divisions are followed by cell wall formation, what do you call such divisions A) Free nuclear. B) Extra nuclear. C) Both of the above. D) None of the above. Show Answer Correct Answer: A) Free nuclear. 20. Type of cell division takes place in apomixis is A) Reductional. B) Meiosis. C) Both (a) and (b). D) Mitosis. Show Answer Correct Answer: D) Mitosis. 21. Herkogamy 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: B) Placement of stamen and pistil at different levels. 22. If a certain type of plant's main pollinator is eliminated from an ecosystem, what is the most likely result? A) The plant will produce a higher number of flowers. B) The plant will produce fewer seeds and the population will decrease. C) The plant will produce a lot of seeds and the population will increase. D) The current plants will start to die from lack of resources. Show Answer Correct Answer: B) The plant will produce fewer seeds and the population will decrease. 23. The part of the flower that is under the petals A) Stem. B) Roots. C) Sepal. D) Stalk. Show Answer Correct Answer: C) Sepal. 24. Zygote is formed inside the A) Stigma. B) Style. C) Female gametophyte. D) Seed. Show Answer Correct Answer: C) Female gametophyte. 25. Heterostyly as a contrivance for cross-pollination is foundin A) Pennisetum. B) Impatiens. C) Primula vulgaris. D) Oenothera. Show Answer Correct Answer: C) Primula vulgaris. ← 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