| Health / Medical Topics |
Allele
Definition 1
Mutually exclusive alternative forms of the same gene occupying the same locus on homologous chromosomes, differing in nucleotide sequence and governing the same biochemical and developmental process. (NCI Thesaurus)
Definition 2
One of two or more DNA sequences occurring at a particular gene locus. Typically one allele (normal DNA sequence) is common, and other alleles (mutations) are rare. (NCI Dictionary)
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