A) All sons and daughters haemophilic and colourblind
B) Haemophilic and colourblind daughters
C) 50% haemophilic colourblind sons and 50% haemophilic sons
D) 50% haemophilic daughters and 50% colourblind daughters
Correct Answer: C
Solution :
Haemophilia and colour blindness both are recessive X-linked traits. They express in males when present in single copy (heterozygous) but in females they express only when present in homozygous condition. Results: 50% sons are colourblinds and haemophilic. 50% sons are haemophilic only. 50% daughter are carrier for colour blindness and haemophilia. 50% daughter are carrier for haemophilia only.You need to login to perform this action.
You will be redirected in
3 sec