How does the meiosis, contributes to the process of evolution?

multi-cellular species the individual starts the life-cycle as a single cell (the ovum) with a single complete set of chromosomes (in humans 22 and an X). The ovum waits for the next stage, a body. This requires a doubling of the set for the ovum to make body cells. A sperm brings the second, single and matching set at fertilization (sometimes a Y matches the first X). Some time after the zygote starts to divide by mitosis to make organs, some cells become oocytes and make new ova by reducing the doubled set back to a single set.

Meiosis transforms a diploid cell into four haploid granddaughter cells, each having a single copy of each chromosome. The process helps increase the genetic diversity of a species.

Explanation:

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