One parent is homozygous cleft chin and the other is heterozygous. MAKE A PUNNET SQUARE to show the propability in their offspring will be heterozygous for a cleft chin.

50% AA and 50% Aa

Explanation:

Punnet square is a tool used to examine the offspring's genotype result of a breeding experiment. We will need to put the genotype of a parent in the row, and other parents at the column. The parent is homozygous(AA) and heterozygous(Aa), the square will be:

                       AA

                 A            A

        A     AA          AA

Aa    a      Aa           Aa

The result will be 50% AA and 50% Aa

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