question_answer

            Haemophilic man marries a normal woman. Their offspring will be:                                             

A)             all boys haemophilic                                          

B)             all normal

C)             all girls haemophilic                                            

D)             all haemophilic

Correct Answer: B

Solution :

                          Haemophilia is also a sex-linked recessive disease (like colour blindness). None of the children would suffer from haemophilia, though girls would be carriers of the disease.             Results? All daughters are carrier while all sons are normal.