Of the following, which best describes the Y chromosome?
A.	The Y chromosome is bigger than X chromosome.
B.	The Y chromosome contains 30% less genetic material than the X chromosome.
C.	The Y chromosome is responsible for determining the sex of the child.
D.	There are no differences between the Y chromosome and the X chromosome.
Answer:B
Of the following, which best describes the Y chromosome?
A.	The Y chromosome is bigger than X chromosome. B.	The Y chromosome contains 30% less genetic material than the X chromosome. C.	The Y chromosome is responsible for determining the sex of the child. D.	There are no differences between the Y chromosome and the X chromosome.