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Allele

An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.

Date:June 12, 2010
Credit:Darryl Leja, NHGRI
Dimensions:1821 x 1096
File Size:275 Kb
Rights:PublicExcept where otherwise noted, this image is in the public domain and may be used, linked or reproduced without permission. If you use an image, please credit the source listed above with a link back to www.genome.gov where possible. Thank you!



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