Allele Definition

ə-lēl
alleles
noun
alleles
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.
Webster's New World
Any of the alternative forms of a gene or other homologous DNA sequence.
American Heritage Medicine
Synonyms:
allelomorph
other
Any of the possible forms in which a gene for a specific trait can occur. In almost all animal cells, two alleles for each gene are inherited, one from each parent. Paired alleles (one on each of two paired chromosomes) that are the same are called homozygous , and those that are different are called heterozygous . In heterozygous pairings, one allele is usually dominant, and the other recessive. Complex traits such as height and longevity are usually caused by the interactions of numerous pairs of alleles, while simple traits such as eye color may be caused by just one pair.
American Heritage Science

Other Word Forms of Allele

Noun

Singular:
allele
Plural:
alleles

Origin of Allele

  • German Allel short for Allelomorph allelomorph from English allelomorph

    From American Heritage Dictionary of the English Language, 5th Edition

  • From German Allel, shortened from Allelomorph, from English allelomorph.

    From Wiktionary

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