Author Question: Up to the first ____ weeks of prenatal development, the gonads and genitalia of embryos are ... (Read 107 times)

naturalchemist · **on:** Jun 18, 2018

Up to the first ____ weeks of prenatal development, the gonads and genitalia of embryos are identical and undifferentiated.

a. two c. six
b. four d. twelve

Question 2

The term Barr body refers to ____.

a. the inactivated Y chromosome, which becomes a dot of condensed material
b. the typical muscular physique of adolescent girls
c. the inactivated X chromosome, which becomes a dot of condensed material
d. the typical muscular physique of adolescent boys