A right-handed father with curly hair and a left-handed mother with curly hair have a 25% chance of having

A right-handed father with curly hair and a left-handed mother with curly hair have a 25% chance of having a right-handed child with wavy hair. Establish the genotype of the parents.

In humans, right-handedness (A) dominates over left-handedness (a), curly hair (B) over wavy hair (b). If the father is right-handed with curly hair – his genotype is A … B …, the mother is left-handed with wavy hair, and in the phenotype the recessive trait can appear only in the homozygous state, then in the mother – aabb. The probability of giving birth to a right-handed child with wavy hair (A … bb) is 25% and the child receives one gene from each pair from both the father and the mother, it is possible to accurately determine the genotype of the father – AaBb.