Sex determination - Boy or Girl?

Question 1

What are sex chromosomes are responsible for?

Answer 1

Determining the offspring’s sex

Question 2

What are girl chromosomes?

Answer 2

Girls will have identical chromosomes XX.

Question 3

What are boy chromosomes?

Answer 3

Boys will have different chromosomes XY.

Question 4

What chromosomes do the eggs contain?

Answer 4

X

Question 5

What chromosomes do sperm contain?

Answer 5

50% of sperm will be X and the other 50% will be a Y

Question 6

What controls the sex of the baby?

Answer 6

Sperm. If an X sperm meets an egg then the baby will be a girl. If a sperm Y meets and egg then the baby will be a boy.

Question 7

Sex chromosome structure

Answer 7