Allele
Different forms of a gene
An allele is a variant or alternative form of a gene that arises by mutation and is found at the same place on a chromosome. In simpler terms, alleles are different versions of the same gene that determine a particular trait or characteristic in an organism. For example, the gene for eye color may have different alleles that code for blue, brown, or green eyes. Alleles can be dominant or recessive, meaning that one version of the gene may have more influence on the expression of the trait than the other version. In genetics, the study of alleles is important for understanding how traits are inherited and how genetic variation occurs within populations of organisms.
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