Both sickle cell anaemia and Huntington's chorea are

Select the incorrect statement with regard to haemophilia.

Who is known as the father of human genetics?

Marriages between close relatives should be avoided because they have a higher incidence of:

Albinism is known to be due to an autosomal recessive mutation. The first child of a couple with normal skin pigmentation was an albino. What is the probability that their second child will also be an albino (in $\%$)?

Phenylketonuria $(PKU)$ is an inborn error of metabolism caused by the expression of recessive genes $(pp)$. In this condition,the amino acid phenylalanine is not converted into which amino acid,and what type of genetic disorder is it?