NEET Biology: Sexual Reproduction in Flowering Plants — Practice Set 9 (10 MCQs)

NEET Biology: Sexual Reproduction in Flowering Plants — Practice Set 9

Q1. Which of the following is a feature of flowers that are adapted for water pollination (hydrophily)?

A. Pollen dehiscence is often synchronized with the period of stigma receptivity to maximize successful fertilization.
B. Pollen dehiscence occurs at random times, regardless of stigma receptivity.
C. Pollen dehiscence is independent of environmental cues such as humidity and temperature.
D. Pollen dehiscence always occurs only at night.

A. Antipodal cells fuse with sperm cells to form the zygote.
B. Antipodal cells contribute to nutrient absorption in the embryo sac and typically degenerate later.
C. Antipodal cells develop into the endosperm.
D. Antipodal cells form the seed coat.

A. Seed dispersal mechanisms include wind, water, animals, and explosive dehiscence.
B. Seed dispersal occurs exclusively through animal ingestion.
C. Seed dispersal always prevents seed predation.
D. Seed dispersal is not important for plant population expansion.

A. The S-locus contains multiple alleles that prevent self-pollen from fertilizing the ovule.
B. The S-locus is responsible for forming the seed coat.
C. The S-locus promotes self-fertilization.
D. The S-locus is active only during fruit ripening.

A. During megasporogenesis, one functional megaspore is produced from the megaspore mother cell while the others degenerate.
B. Megasporogenesis produces multiple functional megaspores that fuse to form the embryo sac.
C. All megaspores formed during megasporogenesis develop into embryo sacs.
D. Megasporogenesis is a form of asexual reproduction in the ovule.

A. In many dicot seeds, the developing embryo absorbs most of the endosperm during embryogenesis, resulting in a mature seed with little or no endosperm.
B. Dicot seeds always retain a large endosperm as a storage tissue in the mature seed.
C. Endosperm absorption in dicots occurs after the seed germinates.
D. Dicot seeds do not develop an endosperm during double fertilization.

Biology — Sexual Reproduction in Flowering Plants

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Which of the following is a feature of flowers that are adapted for water pollination (hydrophily)?

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