- The definition of alleles are pairs or series of genes on a chromosome that determine the hereditary characteristics.
An example of an allele is the gene that determines hair color.
either of a pair of genes located at the same position on both members of a pair of chromosomes and conveying characters that are inherited in accordance with Mendelian law
Origin of alleleGerman allel ; from Classical Greek allēlōn, of one another
Any of the alternative forms of a gene or other homologous DNA sequence. Also called allelomorph.
Origin of alleleGerman Allel, short for Allelomorph, allelomorph, from English allelomorph.