Question

What is the chance for a couple to give birth to a baby girl?
A. 25%
B. 50%
C. 75%
D. Depends on parents' genes

Answer 1

is it B?

Answer 2

Males have a genotype of XY and females have a genotype of XX, now female gamete will always have a genotype of X but males will produce two types of gametes(sperms), X and Y type.

Answer 3

Now it all depends which type of sperm fertilises the ovum.

Answer 4

So its like tossing a coin, 50% probability

Answer 5

so it is B

Answer 6

yes, as u said