A diseased man marries a normal woman and they get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is :

Question

A diseased man marries a normal woman and they get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is : (A) sex-linked dominant (B) Sex-linked recessive (C) Sex-limited characters (D) Autosomal dominant

Tardigrade Admin · Accepted Answer

Since the father is diseased and daughter also-the disease is not sex limited of course, it is sex linked. In daughters, it is expressed even when both XX chromosomes-it is dominant.

Q. A diseased man marries a normal woman and they get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is :

sex-linked dominant

Sex-linked recessive

Sex-limited characters

Autosomal dominant

Since the father is diseased and daughter also-the disease is not sex limited of course, it is sex linked. In daughters, it is expressed even when both XX chromosomes-it is dominant.