dominant (dom´i-nant)

1. Ruling or controlling. 2. In genetics, denoting an allele possessed by one of the parents of a hybrid which is expressed in the latter to the exclusion of a contrasting allele (the recessive) from the other parent. [L. dominans, pres. p. of dominor, to rule, fr. dominus, lord, master, fr. domus, house]


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