The cleft chin trait follows a dominant-recessive inheritance pattern with cleft chin being the dormant 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 likely hood that their next child will have a cleft chin? 100% chance because the mother and father both have cleft chins 25% chance the same probability for all subsequent children 75% chance the same probability for all subsequent children 0% because the three pervious children have cleft chins already