Question

For a human baby to be born a boy he must receive
A. an X chromosome from the father.
B. a Y chromosome from the mother.
C. a Y chromosome from the father.
D. both an X and a Y chromosome from the father.

Answer 1

Do you know what the male and female chromosomes are?

Answer 2

yes femal XX male XY

Answer 3

i think

Answer 4

Correct, now we can eliminate B because a female doesn't have a Y chromosome and D because your not going to get both chromosomes from your father, last time I checked you get one set from each parent.

Answer 5

is it c?

Answer 6

hello?

Answer 7

Yes that would be the only logical choice here, as if you got an x chromosome from your father your mother only has x chromosomes so it wouldn't be a boy.

Answer 8

So that's how A is eliminated.

Answer 9

thx!