3 years ago

How does crossing over ensure that organisms living in isolated populations will have genetic variation?

2 answers:

7 0

For example, a population with many different alleles at a single chromosome locus has a high amount of genetic variation. ... crossing over (or recombination) between chromatids of homologous chromosomes during meiosis.

vova2212 [387]3 years ago

5 0

Answer:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Explanation:

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