Question

A woman have normal vision ( whose father was colour bilnd) married toa man (whose mother was colour blind). read following statement and choose corret option 1) 50% of their daughters would be colour blind
2) 50% of their son would be colour blind
3)50% of their children would be colour blind
4)all are correct

Answer 1

Answer:

3).50% of their children are colour blind

Explanation:

when u draw ur genetic cross ,your females are going to be colourblind ,and one male is gonna be a carrire as the other one will be normal

such that: 2females colourblind;2 males normal

         

Answer 2

Answer: 2) 50% of their son would be colour blind

Explanation:                          COLOUR BLINDNESS

Colour blindness is the in ability of the person to distinguish between red and green colour both the colours from the other colours.

It can be detected by using special charts.

If a carrier women marries a normal male then :

• All daughters would be normal as one of X chromosomes received by  from father is normal.

But there will be  50% chance that they would be carriers due to defective X chromosomes of mother.

• There is  50% chance for the son to be colour blind.