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larisa86 [58]
3 years ago
6

How does crossing over increase genetic variation in organisms

Biology
2 answers:
Ad libitum [116K]3 years ago
7 0
Crossing over allows each chromosome to be unique, which creates variation in every organism.
Elina [12.6K]3 years ago
6 0

Crossing over increases genetic variation because due to this, each of the homologous chromosomes get a new combination of traits/ genes and since a each cell has different homologous chromosomes, genetic variotion will occur

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In Darwin's theory survival of the fittest, he believed species adapt or change within their environment. So I believe lizards living in a valley would be more safe to lay their eggs but lizards living in the mountains would be viviparous because of the non-predicted and unsafe environment which could harm the better chances of development of the offspring.

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harina [27]

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b is the correct answer. hope this helps


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