In a family, a woman has a dimple in her cheek, but a man does not. All children born in wedlock have

In a family, a woman has a dimple in her cheek, but a man does not. All children born in wedlock have a dimple in their cheeks. Set the dominant and recessive alleles of the gene, cross.

Since all born children have a dimple on the cheek, 2 conclusions should be drawn:

A dimple on the cheek is the dominant feature. Let’s designate the gene that causes its development as B, then the gene, which in the homozygous state leads to its absence, will be designated as b;

A woman with a dimple in her cheek has a homozygous BB genotype and produces eggs of the same type containing the dominant B gene.

A man without dimples on his cheeks will be cc, the sperm of the same type produced by him – b.

All children born to this married couple will be heterozygous – Bb, they will have dimples on their cheeks.