A male rat is castrated immediately after birth and then given ...

[jjjetplane]

A male rat is castrated immediately after birth and then given injections of estradiol and progesterone in adulthood. This male rat would be expected to
 
  A) exhibit enhanced inter-male aggression.
  B) attempt to copulate with a female in heat.
  C) show lordosis in response to another male.
  D) attempt to copulate with a nonestrous female.
  E) show maternal aggression.

Question 2

Which of the following conditions will block or diminish female rodent sexual behavior?
 
  A) damage to the lateral thalamus
  B) being in a nonestrous state
  C) targeted mutations of ghrelin receptors
  D) genetic ablation of the SRy gene.
  E) administration of estradiol followed by progesterone.

[livaneabi]

Answer to Question 1

Answer: C
Rationale: A male rat is castrated immediately after birth and then given injections of estradiol and progesterone in adulthood. This male rat would be expected to show lordosis in response to another male.

Answer to Question 2

Answer: B