Which statement concerning the development of genitalia and internal reproductive structures is true?
a. A fertilized egg can acquire the anatomical and physiological features of either sex.
b. Only an XY chromosome fetus can develop a penis.
c. Only an XY chromosome fetus can develop testes.
d. While both XY and XX chromosome fetuses can develop a penis, only the XX chromosome fetus can develop the internal reproductive system of a female.
Question 2
Which biological event directly results in the growth of a penis in a male fetus?
a. Receiving a Y chromosome at conception
b. Secretion of testosterone by the testes
c. Absence of the release of female hormones
d. The presence of a gene on the X chromosome