Which of the following BEST describes a way that meiosis generates genetic variation? Group of answer...

Which of the following BEST describes a way that meiosis generates genetic variation? Group of answer choices Chromosomes replicate during S phase, but do not replicate again after meiosis I. Alleles from egg and sperm separate during meiosis I. Homologues within tetrads line up randomly along either side of the metaphase plate in meiosis II. Sister chromatids separate evenly into gametes during meiosis II.

Expert Solution

Answer:

Chromosomes replicate during S phase, but do not replicate again after meiosis I.

Explanation:

As, chromosomes replicate during S phase, and do not replicate again after meiosis I, it helps to form haploid (n) gametes from diploid (2n) cell after meiosis. In meiosis I homologous pair of chromosomes is separated to form haploid (n) cells which make meiosis a different process from mitosis. Thus, this event describes a way that meiosis generates genetic variation. Thus, it is the correct option.

“Alleles from egg and sperm separate during meiosis I”, this statement is not true. Meiosis is the process of formation of eggs and sperms. Thus, it is not the correct option.

Homologues within tetrads line up randomly along either side of the metaphase plate in meiosis I not in meiosis II. Thus, it is not the correct option.

Sister chromatids separate evenly into gametes during meiosis II which does not generate genetic variation. Thus, it is not the correct option.

gladiator answered 1 year ago

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