This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which among male or female gametes in flower is motile? A) Male gametes. B) Female gametes. C) All the above. D) None of the above. Show Answer Correct Answer: A) Male gametes. 2. Seed coat originates from: A) Perisperm. B) Endosperm. C) Integuments. D) Funicle. Show Answer Correct Answer: C) Integuments. 3. State the ploidy level of a microsporocyte. A) Tetraploid. B) Haploid. C) Triploid. D) Diploid. Show Answer Correct Answer: D) Diploid. 4. The embryo sac of angiosperms typically contains: A) 7 nuclei, 7 cells. B) 8 nuclei, 8 cells. C) 6 nuclei, 6 cells. D) 8 nuclei, 7 cells. Show Answer Correct Answer: D) 8 nuclei, 7 cells. 5. Select the incorrect pair of type of pollination and the corresponding pollinating agency. A) Anemophily-Wind. B) Ornithophily-Birds. C) Hydrophily-Water. D) Chiropterophily-Insects. Show Answer Correct Answer: D) Chiropterophily-Insects. 6. Which of the following in not an insect pollinated plant? A) Amorphophallus. B) Salvia. C) Water hyacinth. D) Wheat. Show Answer Correct Answer: D) Wheat. 7. Wind pollinated Flowers have. A) Single ovule. B) Small flowers. C) Numerously are packed in to an inflorescence. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. Transmission tissue is characteristic feature of A) Wet stigma. B) Solid style. C) Hollow style. D) Dry stigma. Show Answer Correct Answer: B) Solid style. 9. When pollen from the anther contacts the sticky stigma of a pistil. A) Reproduction. B) Pollination. C) Germination. D) Regeneration. Show Answer Correct Answer: B) Pollination. 10. Which is NOT an accessory floral whorl? A) Calyx. B) Gynoecium. C) Corolla. D) Perianth. Show Answer Correct Answer: B) Gynoecium. 11. SECTION B-FILL IN THE BLANKS. Unfertilized ovary develops into a fruit in ..... A) Double fertilization. B) Apomixis. C) Polyembryony. D) Parthenocarpy. Show Answer Correct Answer: D) Parthenocarpy. 12. Offspring exhibit genetic variety A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sexual reproduction. 13. The phenomenon wherein, the ovary develops into a fruit without fertilization is called A) Parthenocarpic. B) Apomixis. C) Asexual reproduction. D) Sexual reproduction. Show Answer Correct Answer: A) Parthenocarpic. 14. Several ..... changes are initiated which lead to the differentiation and development of the floral primordium. A) Hormonal. B) Structural. C) Cytological. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 15. Which one of the following events takes place after doublefertilisation? A) The PEN (Primary Endosperm Nucleus) develops into endosperm. B) TWO male gametes are discharged into the embryo sac. C) The pollen grain germinates on the stigma. D) The pollen tubes enter the embryo sac. Show Answer Correct Answer: A) The PEN (Primary Endosperm Nucleus) develops into endosperm. 16. Which is NOT a type of ovule? A) Orthotropous. B) Anatropous. C) Amphipodous. D) Hemitropous. Show Answer Correct Answer: C) Amphipodous. 17. Number of cells in the pollen grain A) 2. B) 4. C) 3. D) 5. Show Answer Correct Answer: A) 2. 18. One parent makes a copy of itself A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual reproduction. 19. Which of the following floral parts forms the pericarp after fertilisation? A) Nucellus. B) Outer integument. C) Ovary wall. D) Inner integument. Show Answer Correct Answer: C) Ovary wall. 20. In angiosperm plants, which of the following represents the female gametophyte? A) Embryo sac. B) Pistil. C) Ovary. D) Ovule. Show Answer Correct Answer: A) Embryo sac. 21. Transfer of pollen grain to the stigma A) Fertilization. B) Pollination. C) Double fertilization. D) Germination. Show Answer Correct Answer: B) Pollination. 22. Eggs of a flowering plant are contained in ..... A) Pollen Grains. B) Ovules. C) Anthers. D) Stamen. Show Answer Correct Answer: B) Ovules. 23. The viability of pollen grains depends upon- A) Prevailing temperature. B) Prevailing humidity. C) Genetic potentiality of the concerned species. D) All. Show Answer Correct Answer: D) All. 24. Which of the following perform microsporogenesis A) Microspore mother cell. B) Pollen mother cell. C) Both A & B. D) None of the above. Show Answer Correct Answer: C) Both A & B. 25. Which part of a flower produces pollen grains? A) Stigma. B) Filament. C) Ovule. D) Anther. Show Answer Correct Answer: D) Anther. 26. Filliform apparatus is a characteristic feature of A) Suspensor. B) Synergid. C) Zygote. D) Egg. Show Answer Correct Answer: B) Synergid. 27. Scutellum is found in the embryo of: A) Mustard. B) Wheat. C) Bean. D) Pea. Show Answer Correct Answer: B) Wheat. 28. Egg cells are present in the ..... of embryo sac. A) Synergids. B) Antipodal. C) Polar nucleus. D) All the above. Show Answer Correct Answer: A) Synergids. 29. Which of these parts of a flower are NOT considered the "male" parts? A) Pistil. B) Anther. C) Stamen. D) Filament. Show Answer Correct Answer: A) Pistil. 30. Megasporogenesis produces: A) 4 megaspores. B) Many megaspores. C) 8 megaspores. D) 2 megaspores. Show Answer Correct Answer: A) 4 megaspores. 31. The stigma is the part of the flower that receives the pollen grains. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 32. Why do flowering plants show double fertilisation? A) To produce the endosperm which contains food and ensures the seed can germinate succesfully. B) To protect the seeds. C) The diploid zygote can survive. D) The ovary will not develop if double fertilisation does not take place. Show Answer Correct Answer: A) To produce the endosperm which contains food and ensures the seed can germinate succesfully. 33. Which of the following is not a water pollinated plant? A) Zostera. B) Vallisneria. C) Hydrilla. D) Cannabis. Show Answer Correct Answer: D) Cannabis. 34. SECTION B-FILL IN THE BLANKS. Ovule after fertilization becomes the ..... A) Pericarp. B) Seed. C) Endosperm. D) Fruit. Show Answer Correct Answer: B) Seed. 35. An unopened flower A) Plant. B) Seed. C) Leaf. D) Bud. Show Answer Correct Answer: D) Bud. 36. Which process happens first ..... A) Pollination and then fertilisation. B) Fertilisation and then pollination. C) All the above. D) None of the above. Show Answer Correct Answer: A) Pollination and then fertilisation. 37. The tissue that develops into pollen grains is ..... A) Sporogenous tissue. B) Filiform apparatus. C) Nucellus. D) Tapetum. Show Answer Correct Answer: A) Sporogenous tissue. 38. Which hormone induces parthenocarpy? A) Cytokinin. B) Auxin. C) Ethylene. D) ABA. Show Answer Correct Answer: B) Auxin. 39. Pollination executed through bat is called A) Ornithophily. B) Chiropterophily. C) Anemophily. D) Entomophily. Show Answer Correct Answer: B) Chiropterophily. 40. Number of seeds are equal to the A) Number of ovules. B) Number of ovaries. C) Both (a) and (b). D) None of these. Show Answer Correct Answer: A) Number of ovules. 41. In a fully developed male gametophyte the number of nuclei is A) One. B) Five. C) Three. D) Four. Show Answer Correct Answer: C) Three. 42. Select the correct statement(s) regarding the structure of a mature embryo sac. (i) Egg apparatus is situated towards chalazal end. (ii) Antipodal cells are situated towards micropylar end. (iii) A typical angiospermic embryo sac is 7-celled, 8-nucleate at maturity. A) (i) only. B) (ii) only. C) (iii) only. D) (i), (ii) and (iii). Show Answer Correct Answer: C) (iii) only. 43. Pollen grains lose viability within 30 minutes of their release in A) Rose. B) Potato. C) Pea. D) Wheat. Show Answer Correct Answer: D) Wheat. 44. Insect-pollinated flowers usually produce nectar. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 45. Which of the following is the correct sequence of events of sexual reproduction A) Pollination, fertilization, embryo, seedling. B) Pollination, fertilization, seedling, embryo. C) Embryo, seedling, pollination, fertilization. D) Seedling, embryo, fertilization, pollination. Show Answer Correct Answer: A) Pollination, fertilization, embryo, seedling. 46. Megasporogenesis is A) Formation of fruits. B) Formation of seeds. C) Formation of megaspores. D) Both (b) and (c). Show Answer Correct Answer: C) Formation of megaspores. 47. Which of the following is not an advantage of Self-pollination? A) New traits are easily introduced. B) Produces homozygous progeny. C) Plants need not produce large number of pollen grains. D) Assured pollination. Show Answer Correct Answer: A) New traits are easily introduced. 48. In flowering plants, the generative cell of pollen grain divides mitotically to give rise to the A) 1 male gamete. B) 2 male gametes. C) 3 male gametes. D) 4 male gametes. Show Answer Correct Answer: B) 2 male gametes. 49. Function of synergids is to: A) Fuse with extra male gametes and form endosperm. B) Protect egg from pathogens. C) Produce additional embryo. D) Attract pollen tube and bear its shock. Show Answer Correct Answer: D) Attract pollen tube and bear its shock. 50. What is the function of filiform apparatus at the entrance into ovule? A) Brings about opening of the pollen tube. B) Helps in the entry of the pollen tube into a synergids. C) Prevents entry of more than one pollen tube into a synergids. D) Guides pollen tube from synergids to egg. Show Answer Correct Answer: B) Helps in the entry of the pollen tube into a synergids. 51. What is the function of the stigma in a flower? A) Produce sugary nectar. B) Produce male gametes. C) Protect the flower bud. D) Collect pollen grains. Show Answer Correct Answer: D) Collect pollen grains. 52. The part of the plant that collects sunlight A) Petals. B) Ovary. C) Stem. D) Leaves. Show Answer Correct Answer: D) Leaves. 53. Which of the following structures facilitate the entry of oxygen and water into the seed during germination? A) Micropyle. B) Perisperm. C) Seed coat. D) Funicle. Show Answer Correct Answer: A) Micropyle. 54. Read the given statements and select the correct option. Statement 1 Pollination by bats is known as chiropterophily.Statement 2 Pollination by ants is known as ornithophily. A) Both statements 1 and 2 are correct. B) Statement 1 is correct but statement 2 is incorrect. C) Statement 1 is incorrect but statement 2 is correct. D) Both statements 1 and 2 are incorrect. Show Answer Correct Answer: B) Statement 1 is correct but statement 2 is incorrect. 55. In a breeding experiment, the selected male parent is diploid and the female parent is tetraploid. What will be the ploidy level of the endosperm that will develop after double fertilisation? A) Diploid. B) Triploid. C) Tetraploid. D) Pentaploid. Show Answer Correct Answer: D) Pentaploid. 56. Cross-pollination is preferred over self pollination because A) The new varieties are formed. B) It results in better offsprings. C) It is easy. D) Parthenogenesis can be induced. Show Answer Correct Answer: B) It results in better offsprings. 57. The long stalk-like part that supports the stigma. A) Stigma. B) Anther. C) Style. D) Filament. Show Answer Correct Answer: C) Style. 58. In which one of the following, the male and female gametophytes don't have free-living independent existence? A) Marchantia. B) Polytrichum. C) Pteris. D) Funaria. Show Answer Correct Answer: C) Pteris. 59. In chasmogamy pollination takes place in A) Large flower. B) Closed flower. C) Open flower. D) Geitonogamy flower. Show Answer Correct Answer: C) Open flower. 60. Which of the follwing is matched incorrectly?A) Polyspory-CuscutaB) Monospoirangiate-OrchidC) Compound pollen grains-TyphaD) Pollinium-Calotropis A) A. B) C. C) D. D) B. Show Answer Correct Answer: D) B. ← 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books