If a person has wavy hair dominated over straight hair, and black hair color dominates over light hair

If a person has wavy hair dominated over straight hair, and black hair color dominates over light hair, what offspring can be expected in future generations if the father is diheterozygous with dark wavy hair, and the mother is recessive dihomozygote?

According to the condition of the problem, let’s designate the gene responsible for the development of wavy hair as A, then the gene that causes straight hair will be a.

Let’s designate the gene that causes dark hair as B, then the gene for light hair will be b.

The father has dark wavy hair and is diheterozygous for the condition of the problem – AaBb. It produces sperm cells AB, ab, aB and Ab.

The mother is conditionally diheterozygous for recessive traits – aavb, therefore, she has straight blonde hair. The eggs produced by it are ab.

The expected offspring of this married couple:

children with wavy dark hair (AaBb) – 25%;

children with light straight hair (aabb) – 25%;

children with straight dark hair (aaBb) – 25%;

children with wavy blond hair (Aabb) – 25%.