Regarding sexual development, which of the following statements ...

[arivle123]

Regarding sexual development, which of the following statements best characterizes what a parent is most likely to see in an ultrasound taken during the first six weeks of prenatal development?
 
  A) A parent will be able to see the early development of a penis for males.
  B) A parent will begin to see primitive sexual structures, starting with the scrotum for males and the labia for females.
  C) A parent will see primitive genital structures that cannot yet be distinguished as male or female.
  D) A parent will see the development of female internal and external genitalia for both males and females.

Question 2

All of the following are true of human sexual differentiation, EXCEPT
 
  A) genetic instructions in the Y chromosome cause deviation from female development.
  B) genetic activity on X chromosome cause testes to differentiate.
  C) the basic blueprint of the human embryo is female.
  D) at about the 7th week, changes occur in external genitalia.

[dawsa925]

Answer to Question 1

C

Answer to Question 2

Right on time. Thanks a bunch.

[arivle123]

Excellent

[ghepp]

Gracias!