Q1. In the pollen grain, which cell ultimately fuses with the egg cell?A. Vegetative cellB. Generative cellC. Synergid cellD. Antipodal cell
Q2. Which of the following is NOT a typical characteristic of anemophilous (wind-pollinated) flowers?A. Reduced, inconspicuous petalsB. Abundant pollen productionC. Large, brightly colored petalsD. Exposed stamens and pistils
Q3. Double fertilization ensures that the developing embryo is supplied with:A. A protective seed coatB. A nutrient-rich endospermC. Additional genetic material from the tapetumD. Extra pollen grains for vigor
Q4. Which of the following is NOT an advantage of sexual reproduction in flowering plants?A. Generation of genetic diversityB. Increased adaptability to changing environmentsC. Production of genetically identical offspringD. Possibility of hybrid vigor
Q5. Which of the following statements about gametophytic competition is correct?A. When multiple pollen tubes compete to fertilize the ovules, the most vigorous pollen tube usually succeeds, ensuring optimal fertilization.B. Gametophytic competition always results in self-fertilization.C. All pollen tubes have equal chances to fertilize the ovule regardless of competition.D. Gametophytic competition decreases genetic diversity.
Q6. The funiculus in an ovule serves to:A. Attract pollinatorsB. Attach the ovule to the placenta and facilitate nutrient transferC. Develop into the seed coatD. Guide the pollen tube
Q7. Which of the following statements about the placenta in the ovary is correct?A. The placenta is the site where ovules are attached and is crucial for nutrient transfer to the developing ovules.B. The placenta produces pollen grains.C. The placenta develops into the seed coat after fertilization.D. The placenta has no role in seed development.
Q8. Zygomorphic flowers are characterized by:A. Radial symmetryB. Bilateral symmetryC. Absence of nectar guidesD. Lack of specialized pollinators
Q9. The term 'anatropous' refers to which characteristic of an ovule?A. The ovule is upright and not inverted.B. The ovule is inverted, with the micropyle facing the placenta.C. The ovule has a single integument.D. The ovule is fused with the funiculus.
Q10. Pollination in flowering plants is defined as:A. The fusion of gametesB. Transfer of pollen from the anther to the stigmaC. Development of the ovule into an embryoD. Seed dispersal by wind