<genetics> One of a number of alleles that can be distinguished only by special molecular analyses. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
(i″so-ә-lēl´) an allele that appears phenotypically identical to another, but that can be distinguished at the protein or DNA level. Found on http://www.encyclo.co.uk/local/21001