This requires both parents to be homozygous for same alleles in question.
This requires both parents to be homozygous for same alleles in question.
对于相同的等位基因来说，父母本的等位基因都要是纯合的。
This requires both parents to be homozygous for same alleles in question.
对于相同的等位基因来说，父母本的等位基因都要是纯合的。