Question

The cleft chin trait follows a dominant-recessive inheritance pattern with cleft chin being the dominant trait. john is heterozygous for a cleft chin as is his wife betty. john and betty have three kids all of which have a cleft chins. according to punnett square prediction what is the likelihood that their next child will have a cleft chin

Answer 1

A

B

Step-by-step explanation:

:))

Answer 2

There is a 75% chance. If C represents the dominant gene for cleft chin and c represents the ressesive, than using the punter square 3/4 of the squares would have a dominant gene.