Answer to Question #155203 in Genetics for Ashwani Kumar Gupta

Question

In a family where the parents could hear well and had: one had smooth hair, and the other had curly hair, a deaf child with smooth hair was born. Their second child heard well and had curly hair.

What is the probability of further occurrence of deaf children with curly hair if it is known that the gene for curly hair dominates over smooth hair, deafness is a recessive trait, and both pairs of genes are located on different chromosomes?

Answer 1

25% or $\frac{1} {4}$