Answer: e. HT
Explanation:
Gametes are sex cells, which can be an egg or a sperm. They only have one allele of each gene. Head shape is a trait coded by one gene (H) and tail length is another trait coded by another gene (T) Organisms are diploid, this means they have two alleles for each gene, so in this example the animal is HhTt. But, as it was said before, gametes only have one allele of each gene, then the gametes produced will be: HT, Ht, hT and ht.
From the options provided, the only one correct is HT.
