What is the genotype of a homozygous person with a cleft chin?

When someone has two copies of the same allele, they are said to be homozygous for that allele. When someone has a combination of alleles for a given gene, they are said to be heterozygous. ... If the woman is homozygous for cleft chin (BB), her offspring will always have cleft chin.

Explanation:

U-U

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but anyway no it is not possible for a black eyed alien and a gray eyed alien to have a baby with white eyes because the white trait is nowhere to be seen in the parents.

there for the only out comes (assuming their both pure bred) is for a a baby to have black eyes white eyes or heterochromia (two eye colors at once) which is known as codominance when both trait are dominant and the show

Explanation:

heres the punnet square b is black and g is gray.