Allele

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Definition
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One of 2 or more forms of a respective hereditary factor (gene) responsible for the phenotypic property (phenotype) of an organism, located in a specific locus (gene locus) on a chromosome.

A single allele is inherited from one parent. If the alleles differ in one locus, the organism is heterozygous. The dominant genetic trait prevails. If the alleles do not differ in one locus, the organism is homozygous.

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Last updated on: 29.10.2020