question_answer

A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none of the daughters are affected which of the following mode of inheritance do you suggest for this disease [CBSE PMT 2005]

A) Autosomal dominant

B) Sex-linked dominant

C) Sex-limited recessive

D) Sex-linked recessive