What is the probability of having sick children in a family where both spouses suffer from parahemophilia?

As you know, parahemophilia is a recessive trait, its gene is localized in the autosomes.

Let’s designate the gene that determines the development of parahemophilia as p. The gene that determines well-being in relation to the disease under consideration will be denoted by R.

Persons suffering from parahemophilia have a genotype homozygous for the parahemophilia gene – pp. They are able to produce the same type of germ cells p. Such parents are not able to transmit healthy P genes to their offspring, therefore, all their offspring are homozygous for parahemophilia – pp, and show signs of this disease.

Answer: the probability of the birth of children with parahemophilia in this family is 100%.