question_answer

A marriage between normal visioned man and colourblind woman will produce which of the following type of offsprings ?

A) Normal sons and carrier daughters

B) Colourblind sons and carrier daughters

C)  Colourblind sons and 50% carrier daughters

D)  50% colourblind sons and 50% carrier daughters

Correct Answer: B

Solution :

                 Colour blindness is a recessive sex-linked defect in which human beings are unable to distinguish red and green colours. Gene complement of a colourblind woman is  that of colourblind man  and carrier woman with normal vision   A marriage between normal visioned man and colourblind woman will produce colourblind sons and carrier daughters.