What is Allele in Biology?

Learn Allele definition in biology with explanation to study “What is Allele”. Study allele explanation with biology terms to review biology course for online degree programs.

Allele Definition

  • Different versions of the same gene.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Allele Explanation

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position or have the same genetic locus on a chromosome. Each copy of the allele is inherited from each parent and may be different from each other and may give a different phenotype than the parent organism. Humans are called diploid organisms since they have two alleles at each gene locus.

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