Related Questions

    1.

    In a hypothetical plant species, the endosperm is diploid and the embryo is triploid. Which of the following most accurately describes the process leading to this unusual ploidy?

    A

    Diploid megaspore mother cell undergoes mitosis to form the embryo sac, and a diploid male gamete fuses with a haploid central cell.

    B

    Haploid megaspore mother cell undergoes meiosis to form the embryo sac, and a diploid male gamete fuses with a diploid central cell.

    C

    Triploid megaspore mother cell undergoes mitosis to form the embryo sac, and a haploid male gamete fuses with a diploid central cell.

    D

    Diploid megaspore mother cell undergoes meiosis to form the embryo sac, and two haploid male gametes fuse with a haploid central cell.

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    8.

    Offsprings formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

    A

    Sexual reproduction is a lengthy process

    B

    Gametes of parents have quantitatively different genetic composition

    C

    Genetic material comes from two parents of same species

    D

    Greater amount of DNA is involved in sexual reproduction

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