NEET Biology: Sexual Reproduction in Flowering Plants — Practice Set 1 (10 MCQs)

NEET Biology: Sexual Reproduction in Flowering Plants — Practice Set 1

Q1. Which of the following statements about self-incompatibility is incorrect?

A. Self-incompatibility prevents self-fertilization and promotes cross-pollination.
B. Self-incompatibility is a genetic mechanism to avoid inbreeding.
C. Self-incompatibility allows pollen from the same plant to fertilize its ovules.
D. Self-incompatibility is controlled by S-genes.

A. In self-pollination, pollen is transferred between different flowers of the same plant; in cross-pollination, pollen is transferred within the same flower.
B. In self-pollination, pollen from the same flower fertilizes the ovules; in cross-pollination, pollen is transferred between different flowers.
C. Self-pollination requires animal vectors while cross-pollination relies solely on wind.
D. There is no difference between self-pollination and cross-pollination.

A. Bat-pollinated flowers are typically large, pale or white, open at night, and emit a strong fruity or musky odor.
B. Bat-pollinated flowers are small, brightly colored, and open during the day.
C. Bat pollination relies exclusively on wind for pollen dispersal.
D. Bat-pollinated flowers have no nectar to reward pollinators.

A. Specialized pollinator interactions can contribute to reproductive isolation, thereby facilitating speciation in flowering plants.
B. Pollinator specificity has no effect on plant speciation.
C. Generalist pollination always leads to complete reproductive isolation.
D. Reproductive isolation is solely determined by geographic separation, independent of pollinator behavior.

Biology — Sexual Reproduction in Flowering Plants

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Which of the following statements about self-incompatibility is incorrect?

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