NEET Biology: Sexual Reproduction in Flowering Plants — Practice Set 2

Q1. Flowers adapted for wind pollination typically exhibit which of the following characteristics?

A. Large, colorful, and fragrant petals
B. Small, green, and inconspicuous flowers with exposed stamens
C. Tubular shape with nectar guides
D. Dense clustering of showy petals

Q2. In the process of fertilization in flowering plants, the male gamete reaches the ovule via:

A. Pollen tube
B. Style
C. Sepal
D. Petal

Q3. What does the term 'gametophyte' refer to in flowering plants?

A. The structure that forms the seed coat
B. The generation that produces gametes
C. The tissue that gives rise to the fruit
D. The dormant stage of the embryo

Q4. During microsporogenesis, the microspore mother cell undergoes meiosis to produce how many microspores?

A. 1
B. 2
C. 3
D. 4

Q5. Which of the following statements about polyspermy prevention in flowering plants is correct?

A. Mechanisms exist that ensure only one sperm fuses with the egg cell, thereby preventing polyspermy.
B. Polyspermy is common and beneficial in flowering plants.
C. Multiple sperm typically fuse with the egg cell to increase genetic diversity.
D. There is no mechanism to prevent polyspermy in angiosperms.

Q6. Which of the following statements about apomixis in flowering plants is correct?

A. Apomixis is a sexual process involving the fusion of gametes.
B. Apomixis results in seed formation without fertilization, producing clonal offspring.
C. Apomixis is exclusive to gymnosperms.
D. Apomixis increases genetic variation through recombination.

Q7. Which of the following correctly defines herkogamy?

A. Temporal separation of male and female functions
B. Spatial separation of stamens and pistils within the flower
C. A genetic mechanism preventing self-fertilization
D. Transfer of pollen by wind

Q8. The term 'syngamy' in plant reproduction refers to:

A. The production of gametes
B. The fusion of male and female gametes
C. The growth of the pollen tube
D. The process of seed dispersal

Q9. Which of the following is NOT a typical characteristic of cleistogamous flowers?

A. They remain closed during pollination
B. They exhibit self-pollination
C. They produce large, showy petals
D. They ensure reproduction under unfavorable conditions

Q10. Which of the following statements about auxin's role in fruit set is correct?

A. Auxin plays a crucial role in initiating fruit development after fertilization.
B. Auxin completely inhibits fruit growth.
C. Auxin is not involved in the process of fruit set.
D. Auxin only affects vegetative growth and not reproductive development.

Biology — Sexual Reproduction in Flowering Plants

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Flowers adapted for wind pollination typically exhibit which of the following characteristics?

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