« previous next »

Author Question: All cells of the human body contain: a. 23 pairs of chromosomes. b. 23 chromosomes. c. 23 pairs ... (Read 185 times)

xroflmao

  • Hero Member
  • *****
  • Posts: 515
on: Jun 22, 2018
All cells of the human body contain:
 
  a. 23 pairs of chromosomes.
  b. 23 chromosomes.
  c. 23 pairs of genes.
  d. 23 genes.

Question 2

Compare the neural circuits that control male and female sexual behavior.
 
  What will be an ideal response?


apple

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: The medial preoptic area is important for male sexual behavior (approach, intromission, and ejaculation). Circuits within the spinal cord mediate male sexual reflexes of erection and ejaculation. Electrical stimulation of the MPA elicits sexual behavior, whereas damage to the MPA impairs male sexual behavior. The MPA receives input from the vomeronasal organ and projects to spinal cord motor neurons that control copulation. In contrast, the ventromedial hypothalamus receives input from the vomeronasal organ in the female rat and this key structure sends outputs to the PAG. Damage to the VMH or to the PAG will disrupt lordosis.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Nurse bees tending to brood in cells both open and capped with beeswax. Nurse bees tending to brood in cells both open and capped with beeswax.
Human eye anatomy Human eye anatomy
Macaw or Human Macaw or Human
The supralaryngeal airway in a chimpanzee and a human. The supralaryngeal airway in a chimpanzee and a human.
The battle plan of the body’s defenses. The battle plan of the body’s defenses.
Comparison of the chromatin fibers with metaphase chromosomes Comparison of the chromatin fibers with metaphase chromosomes
Video: Segmentation and migrating motility complexes & Gastroileal reflex

For a complete list of videos, visit our video library