Author Question: A male rat is castrated immediately after birth and then given injections of estradiol and ... (Read 64 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
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

  • Sr. Member
  • ****
  • Posts: 328
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

For a complete list of videos, visit our video library