1. The problem statement, all variables and given/known data The Xolo is the national dog of Mexico. The striking characteristic of this dog is that it has no hair. Xolos carry a mutation in Chromosome 17 that, when homozygous, is lethal. If two hairless Xolos were mated, what fraction of their surviving offspring would be hairless? 2. Relevant equations 3. The attempt at a solution If two hairless Xolos were mated, assuming Hh and Hh since homozygous would not exist, then 1/4 would be HH 1/4 would be hh and these would die because they're homozygous. and 2/4 Hh. Therefore 50% would have no hair. But the answer is 2/3 will have no hair, why?