Question

What is variations?How it occured in humans?​

Answer 1

Answer:

Causes of variation

Causes of differences between individuals include independent assortment, the exchange of genes (crossing over and recombination) during reproduction (through meiosis) and various mutational events. There are at least three reasons why genetic variation exists between populations.

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Answer 2

Answer:

$\huge\mathcal\blue {Question}$ ----->What is variations?How it occured in humans?

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Human genetic variation is the genetic differences in and among populations. There may be multiple variants of any given gene in the human population (alleles), a situation called polymorphism. No two humans are genetically identical. ... Alleles occur at different frequencies in different human populations.

Explanation:

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