Out of 4 female children, the expected number of girls with hemophilia is?
a. 0
b. 1
c. 2
d. 4
2nd part regarding same question above but the expected number of boys with hemophilia is?
a. 0
b. 1
c. 2
d. 4
a. 0
b. 1
c. 2
d. 4
2nd part regarding same question above but the expected number of boys with hemophilia is?
a. 0
b. 1
c. 2
d. 4
-
Both C.
Mother is X* X
And father is X* Y
So, when you make a punnet square, you get 50% chance of both boys and girls to be affected.
However, 50% does not mean that if the couple has 4 boys or 4 girls, then 2 boys/girls will be definitely affected.
It only tells us that there is a 50% chance each time of a boy/girl to get hemophilia. And therefore, the word 'expected' in your question has a great significance..!
Mother is X* X
And father is X* Y
So, when you make a punnet square, you get 50% chance of both boys and girls to be affected.
However, 50% does not mean that if the couple has 4 boys or 4 girls, then 2 boys/girls will be definitely affected.
It only tells us that there is a 50% chance each time of a boy/girl to get hemophilia. And therefore, the word 'expected' in your question has a great significance..!