This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Embryo of flowering plants is always: A) Tetraploid (4n). B) Triploid (3n). C) Haploid (n). D) Diploid (2n). Show Answer Correct Answer: D) Diploid (2n). 2. Coleorrhiza protects A) Radicle. B) Hypocotyl. C) Plumule. D) Epicotyl. Show Answer Correct Answer: A) Radicle. 3. The male reproductive whorl of flower is called ..... A) Stamen. B) Androecium. C) Anther. D) Pollen. Show Answer Correct Answer: B) Androecium. 4. Megasporogenesis is formation A) Microspore. B) Seed. C) Fruit. D) Megaspore. Show Answer Correct Answer: D) Megaspore. 5. Which one is male gametophyte? A) Anther. B) Pollen sac. C) Stamen. D) Pollen grain. Show Answer Correct Answer: D) Pollen grain. 6. 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. 7. Total number of microsporangia present in a dithecous anther are A) 4. B) 2. C) 6. D) 1. Show Answer Correct Answer: A) 4. 8. 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) 1-2-3. B) 3-2-1. C) 3-1-2. D) 1-3-2. Show Answer Correct Answer: C) 3-1-2. 9. 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. 10. 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. 11. 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. 12. In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as A) Parthenogenesis. B) Parthenocarpy. C) Autogamy. D) Syngamy. Show Answer Correct Answer: A) Parthenogenesis. 13. The major cause of pollen allergy is due to A) Parhenium. B) Pistia. C) Mirabilis. D) Cladophora. Show Answer Correct Answer: A) Parhenium. 14. 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. 15. 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. 16. 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. 17. The part of the flower that is under the petals A) Sepal. B) Roots. C) Stalk. D) Stem. Show Answer Correct Answer: A) Sepal. 18. Zygote is formed inside the A) Seed. B) Female gametophyte. C) Stigma. D) Style. Show Answer Correct Answer: B) Female gametophyte. 19. Heterostyly as a contrivance for cross-pollination is foundin A) Oenothera. B) Impatiens. C) Pennisetum. D) Primula vulgaris. Show Answer Correct Answer: D) Primula vulgaris. 20. The leaves of this plant produces buds in their margin which grow into a new plants.? A) Bryophyllum. B) Sugarcane. C) Lotus. D) Tulsi. Show Answer Correct Answer: A) Bryophyllum. 21. The reproductive organ of a flowering plant A) Seed. B) Pistil. C) Flower. D) Stamen. Show Answer Correct Answer: C) Flower. 22. Indentify the wrong statement regarding post-fertilisation development. A) The ovary wall develops into pericarp. B) The outer integument of ovule develops into tegmen. C) The fusion nucleus (triple nucleus) develops into endosperm. D) The ovule develops into seed. Show Answer Correct Answer: B) The outer integument of ovule develops into tegmen. 23. The number of megaspores formed from a megaspore mother cell (MMC) is /are ..... A) 2. B) 1. C) 4. D) 7. Show Answer Correct Answer: B) 1. 24. Which apparatus guides the pollen tube? A) Antipodals. B) Synergids. C) Egg. D) Suspensor. Show Answer Correct Answer: B) Synergids. 25. What are the parts of the pistil? A) Filament, Stamen, Ovary. B) Stigma, Style, Ovary. C) Stamen, Ovary, Anther. D) Anther, Filament, Style. Show Answer Correct Answer: B) Stigma, Style, Ovary. 26. SECTION B-FILL IN THE BLANKS. Fill in the blank:The outer layer of pollen grain is called ..... A) Tapetum. B) Aleurone. C) Intine. D) Exine. Show Answer Correct Answer: D) Exine. 27. Offspring have genetic diversity A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sexual reproduction. 28. Pollen tablets are used as A) Breeding programmes. B) Food supplements. C) Curative for diseases. D) All of the above. Show Answer Correct Answer: B) Food supplements. 29. Orchid ovule is: A) Fertilized early. B) Polyembryonic. C) Unfertilized. D) Fertilized late. Show Answer Correct Answer: D) Fertilized late. 30. The cells of which of the layer of anther wall are multinucleated due to endomitosis? A) Epidermis. B) Middle layer. C) Endothecium. D) Tapetum. Show Answer Correct Answer: B) Middle layer. 31. Which of the following statements is/are correct? (I) Endothecium lies below epidermis. (ii) Fusion of egg with male gamete is called apogamy. (iii) Synergids are haploid (iv) The point at which funicle touches the ovule is raphe. A) (i) and (iv). B) (i)and (ii). C) (i) and (iii). D) (ii) and (iii). Show Answer Correct Answer: C) (i) and (iii). 32. Which of the following you will find in Cleistogamous flowers? A) Flowers open only at maturity. B) Equal chance for self and cross pollination. C) Rare chance for Cross pollination. D) Involves pollinating agents. Show Answer Correct Answer: C) Rare chance for Cross pollination. 33. During microsporogenesis, the diploid microspore mother cell (MMC) divides to form microspores. Which of the following statements is true? A) MMC undergoes one mitotic division to form 4 haploid pollen grains. B) MMC undergoes one mitotic division and one meiotic division to form 4 haploid pollen grains. C) MMC undergoes one meiotic division to form 4 haploid pollen grains. D) MMC undergoes two mitotic divisions to form 4 haploid pollen grains. Show Answer Correct Answer: C) MMC undergoes one meiotic division to form 4 haploid pollen grains. 34. The process whereby seeds or spores sprout and begin to grow A) Reproduction. B) Germination. C) Pollination. D) Cellular respiration. Show Answer Correct Answer: B) Germination. 35. Male gametophyte in angiosperms produces A) Two sperms and a vegetative cell. B) Single sperm and a vegetative cell. C) Single sperm and two vegetative cell. D) Three sperms. Show Answer Correct Answer: A) Two sperms and a vegetative cell. 36. To explain Geitonogamy, one of the following statements do not apply. Find the statement. A) It involves transfer of pollen from one flower to stigma of another flower within the same plant. B) Such flowers are usually bisexual. C) It requires external pollinating agent. D) It is physically a cross pollination but genetically similar to self pollination. Show Answer Correct Answer: B) Such flowers are usually bisexual. 37. Seed without endosperm is: A) Cereal. B) Coconut. C) Almond. D) Castor. Show Answer Correct Answer: C) Almond. 38. What are angiosperms? A) Flowering plants. B) Plants with cones. C) All the above. D) None of the above. Show Answer Correct Answer: A) Flowering plants. 39. Both chasmogamous and cleistogamous flowers are present in A) Rosa. B) Commelina. C) Helianthus. D) Gossypium. Show Answer Correct Answer: B) Commelina. 40. To achieve 3-celled stage in angiosperms, which cell of the pollen grain divides to form two male gametes? A) Vegetative cell. B) Generative cell. C) Microspore mother cell. D) None of the above. Show Answer Correct Answer: B) Generative cell. 41. The male part of the plant that sits on top of the filament A) Stamen. B) Anther. C) Style. D) Stigma. Show Answer Correct Answer: B) Anther. 42. Exposed anthers and stigma are seen in A) Chasmogamous Flowers. B) Cleistogamous Flowers. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chasmogamous Flowers. 43. Which of the following grows from underground stem? A) Ginger. B) Garlic. C) Strawberry. D) Katakataka. Show Answer Correct Answer: A) Ginger. 44. Papaver and Michelia flowers are characterized by the presence of A) Apocarpous and syncarpous gynoecium respectively. B) Syncarpous and apocarpous gynoecium respectively. C) Monocarpellary and multicarpellary gynoecium respectively. D) None. Show Answer Correct Answer: B) Syncarpous and apocarpous gynoecium respectively. 45. Microsporangia is also known as A) Male gametophyte. B) Pollen grains. C) Pollen sacs. D) Microspore. Show Answer Correct Answer: C) Pollen sacs. 46. Which of the following is a post-fertilization event? A) Seed formation. B) Microsporogenesis. C) Pollination. D) Gametogenesis. Show Answer Correct Answer: A) Seed formation. 47. Section C-True or False:Double fertilization is found only in gymnosperms. Choose True or False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 48. Dicliny in flowers promotes: A) Cross-pollination. B) Apomixis. C) Parthenogenesis. D) Self-pollination. Show Answer Correct Answer: A) Cross-pollination. 49. Flowering plants are classified as ..... A) Angiosperm. B) Gymnosperm. C) All the above. D) None of the above. Show Answer Correct Answer: A) Angiosperm. 50. Ploidy of ovum of angiosperms is A) Diploid. B) Triploid. C) Polyploid. D) Haploid. Show Answer Correct Answer: D) Haploid. 51. Section C-True or False:Sporopollenin is the most resistant organic material. Choose True or False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 52. A ..... flower is one that has many carpels fused together (e.g. Brinjal). A) Apocarpous. B) Syncarpous. C) Multicarpellary. D) Unicarpellary. Show Answer Correct Answer: B) Syncarpous. 53. Select the incorrect option w.r.t. endospermic seeds A) Castor. B) Coconut. C) Wheat. D) Pea. Show Answer Correct Answer: D) Pea. 54. The true embryo develops as a result to fusion of A) Two polar nuclei of embryo sac. B) Egg cell and male gamete. C) Synergid and male gamete. D) Male gamete and antipodals. Show Answer Correct Answer: B) Egg cell and male gamete. 55. Mark the odd one out in the following group: A) Apple. B) Mango. C) Cashew. D) Strawberry. Show Answer Correct Answer: C) Cashew. 56. The underground part that absorbs water and minerals from soil. A) Petals. B) Leaves. C) Stem. D) Roots. Show Answer Correct Answer: D) Roots. 57. During the anther development, which is the structure formed from the cells of the sporogenous tissue undergoing meiotic divisions? A) Microspore tetrads. B) Microsporangium. C) Pollen sacs. D) Pollen grain. Show Answer Correct Answer: A) Microspore tetrads. 58. The gynoecium of Michelia is A) Multicarpellary, apocarpous. B) Multicarpellary, syncarpous. C) Monocarpellary. D) Bicarpellary, syncarpous. Show Answer Correct Answer: A) Multicarpellary, apocarpous. 59. ..... tissue is responsible for producing pollen grains in microsporangia. A) Endothecium. B) Epidermis. C) Sporogenous. D) Tapetum. Show Answer Correct Answer: C) Sporogenous. 60. Anther of an angiosperm is bilobed, tetragonal and consist of ..... microsporangia. A) Three. B) Four. C) Two. D) Only one. Show Answer Correct Answer: B) Four. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books