Question

Explain why are fertilization and meiosis important for providing genetic diversity?

Answer 1

Answer:

Both fertilization and meiosis contribute to genetic variation. ... Creation of genetic material that is different from that of the parents, or genetic recombination, is the result of crossing over, and it further increases the possible variation that can occur because now we have new genetic material to work with.

Answer 2

Meiosis reduces the number of chromosomes so that gametes are haploid, or cells that contain only one set of chromosomes.

How do meiosis and fertilization affect genetic diversity and evolution?

Meiosis and fertilization create genetic variation by making new combinations of gene variants (alleles). In some cases, these new combinations may make an organism more or less fit (able to survive and reproduce), thus providing the raw material for natural selection.

How does fertilization contribute to genetic diversity?

Fertilization creates genetic diversity by allowing each parent to randomly contribute a unique set of genes to a zygote. While fertilization is not part of meiosis, it depends on meiosis creating haploid gametes. The fertilized cell restores the diploid number.

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