Enumerate at least three mechanisms of genetic variation.

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Enumerate at least three mechanisms of genetic variation.

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 Genetic variation : It is presence of differences in sequences of genes between individual organisms of a species . It enables natural selection . 

It results in different forms or alleles of genes . For example Eye color , people with blue eye color have one allele of the gene , whereas people with brown eyes have a different allele of the gene. 

There are three sources of variation i.e. 

Mutation 

Recombination between homologous chromosomes during meiosis 

Immigration of genes or random mating or random fertilization 

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