In humans, the gene that causes one of the forms of deaf-dumbness is recessive in relation to normal

In humans, the gene that causes one of the forms of deaf-dumbness is recessive in relation to normal hearing. deaf-mute husband married a girl with normal hearing, their child has normal hearing. Determine the mother’s genotype.

For a correct, clear and understandable answer to this question, let’s take some letters for genotypes that will mean them.

So, the gene for normal development – A.

For the gene for hearing problems – a.

Due to the fact that the girl has hearing problems, her genotype is aa.

The man, in turn, is homozygous. Its genotype is AA.

For such parents, all offspring will always be healthy.

And any analysis of any crossing fully confirms this.

Thus, we have answered the question.