homozygous genotypeListen to pronunciation(HOH-moh-ZY-gus JEE-noh-tipe)The presence of two identical alleles at a particular gene locus. A homozygous genotype may include two normal alleles or two alleles that have the same variant.More InformationHomozygous (National Human Genome Research Institute)Search NCI's Dictionary of Genetics TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#