Figure 2From: Molecular patterns of sex determination in the animal kingdom: a comparative study of the biology of reproductionSingle-locus complementary sex determination (sl-CSD). In single-locus complementary sex determination (sl-CSD), heterozygotes at a single sex locus develop as females whereas hemizygotes and homozygous diploids develop as males. However, homozygous diploid males are generally sterile, unable to mate or not viable.Back to article page