This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What initiates the formation of endosperms? A) Fertilization. B) Triple fusion. C) Fusion. D) Double fusion. Show Answer Correct Answer: B) Triple fusion. 2. Artificial hybridisation is one of the major approaches of crop improvement programme. For the bisexual flower it includes the following steps in correct sequence. A) Bagging, emasculation, pollination, rebagging. B) Pollination, bagging, rebagging. C) Bagging, pollination, rebagging. D) Emasculation, bagging, pollination, rebagging. Show Answer Correct Answer: D) Emasculation, bagging, pollination, rebagging. 3. Which function of tapetum is correct? A) Transportation of nutrients to inner side of anther. B) Helps in pollen wall formation. C) Synthesis of callase enzymes for separation of microspore tetrads. D) All of the above. Show Answer Correct Answer: D) All of the above. 4. Section D-One-word answers (convert to MCQ):Select the correct one-word term for the stalk attaching the ovule to the placenta. A) Funicle. B) Pedicel. C) Hilum. D) Filament. Show Answer Correct Answer: A) Funicle. 5. There is no genetic variety among the offspring A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual reproduction. 6. Cleistogamy can prevent A) Only autogamy. B) Both autogamy and geitonogamy. C) Both geitonogamy and xenogamy. D) Only xenogamy. Show Answer Correct Answer: C) Both geitonogamy and xenogamy. 7. SECTION B-FILL IN THE BLANKS. Fill in the blank:The process of formation of megaspores is called ..... A) Megasporogenesis. B) Microsporogenesis. C) Syngamy. D) Parthenocarpy. Show Answer Correct Answer: A) Megasporogenesis. 8. Intine of pollen grains is made up of A) Fat-like sporopollenin. B) Callose. C) Cellulose. D) Pecto-cellulose. Show Answer Correct Answer: D) Pecto-cellulose. 9. Assertion:Pollen grains are well preserved as fossils. Reason:Pollen posses sporopollenin. A) A. B) B. C) C. D) D. Show Answer Correct Answer: A) A. 10. What does dispersal means? A) Growth of plant from seed into young plant. B) Transfer of pollen grain from anther to stigma. C) Transportation of seeds and fruits away from parent plant. D) Process involving fusion of nuclei to form a zygote and production of genetically dissimilar offspring. Show Answer Correct Answer: C) Transportation of seeds and fruits away from parent plant. 11. The coconut water from tender coconut is A) Cellular endosperm. B) Free nuclear endosperm. C) Both cellular and nuclear endosperm. D) Free nuclear embryo. Show Answer Correct Answer: B) Free nuclear endosperm. 12. Pollen grain divides to form: A) 2-celled structure. B) 3-celled structure. C) Both. D) None. Show Answer Correct Answer: C) Both. 13. The flowers of a plant are not sweet-scented and it doesn't produce nectar. How can it likely dispersed by? A) By wind. B) By insects. C) By water. D) By explosive action. Show Answer Correct Answer: A) By wind. 14. The female part of the flower has three parts. They are: A) The style, stigma, and ovary. B) The pistil, stigma, and pollen. C) The filament, style, and anther. D) The filament, anther, and stigma. Show Answer Correct Answer: A) The style, stigma, and ovary. 15. Dehiscence of anther in mesophytes is caused by A) Hydration of anthers. B) Dehydration of anthers. C) Mechanical injury. D) None of these. Show Answer Correct Answer: B) Dehydration of anthers. 16. Strawberry plants reproduce through ..... ? A) Bulbs. B) Underground stems. C) Runners. D) Leaves. Show Answer Correct Answer: C) Runners. 17. The number of meiotic divisions required to produce 400 seeds in pea plant A) 100. B) 200. C) 400. D) 500. Show Answer Correct Answer: D) 500. 18. Organisms in the population are identical, so none of them have an advantage for survival if the environment changes A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual reproduction. 19. Why do parent plants want their seeds to disperse far away from them? A) Sadly, we all have to leave home at some point!. B) To stop competition for the same resources. C) The parent plant is jealous of the seedling. D) The parent plant feels it is important that the seed goes travelling before it commits to its new home. Show Answer Correct Answer: B) To stop competition for the same resources. 20. The male gametophyte is: A) Pollen grain. B) Embryo. C) Endosperm. D) Ovule. Show Answer Correct Answer: A) Pollen grain. 21. Science of cultivation, breeding, marketing and arrangement of flowers is called A) Arboriculture. B) Floriculture. C) Horticulture. D) Anthology. Show Answer Correct Answer: B) Floriculture. 22. Which among the following statements are true for unisexual flowers?(i) They possess both stamen and pistil.(ii) They possess either stamen or pistil.(iii) They exhibit cross pollination.(iv) Unisexual flowers possessing only stamens cannot produce fruits. A) (i) and (iv). B) (ii), (iii) and (iv). C) (iii) and (iv). D) (i), (iii) and (iv). Show Answer Correct Answer: B) (ii), (iii) and (iv). 23. Pollen tube usually enters the ovary through: A) Stigma. B) Style. C) Ovary wall. D) Placenta. Show Answer Correct Answer: B) Style. 24. SECTION B-FILL IN THE BLANKS. In most angiosperms, ..... megaspore is functional. A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: A) One. 25. Section D-One-word answers (convert to MCQ):Select the correct one-word term for the site of pollen germination. A) Stigma. B) Anther. C) Style. D) Ovary. Show Answer Correct Answer: A) Stigma. ← 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 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 10Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books