Before revision: Illustration of the degree of Penentrance Penetrance in genetics is the proportion of individuals carrying a particular variant (or allele) of a gene (the genotype) that also expresses an associated trait ( the phenotype).
After revision: Illustration of degree of Penentrance Penetrance in genetics is the proportion of individuals carrying a particular variant (or allele) of a gene (the genotype) that also expresses an associated trait ( the phenotype).