isoallele
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isoallele
[i″so-ah-lēl´]an allelic gene that is considered as being normal but can be distinguished from another allele by its differing phenotypic expression when in combination with a dominant mutant allele.
i·so·al·lele
(ī'sō-ă-lēl'),One of a number of alleles that can be distinguished only by special analyses.