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Hello everyone.
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In this question we are asked which one of the given does not contribute to genetic variation in population.
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Now in this question we have been given some options and we are asked which one of them does not contribute to genetic variation.
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So genetic variation in any population is contributed by various factors such as the process called crossing over.
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So, in the process called crossing over, the two sister chromatids meet and form synapse.
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During the formation of synapse, there are some exchange of genome or you can call them segments of genes that takes place as a result of which forming new combination.
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So we can say that crossing over is one such phenomena through which genetic variation takes place.
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Another such phenomena through which genetic variation takes place is natural selection or genetic drift.
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So these are some examples of phenomena that contribute to genetic variation.
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Now if you look at the options, in option a we have been given independent assortment of course.
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Chromosomes in meiosis 1...