« previous next »

Author Question: All cells of the human body contain: a. 23 pairs of chromosomes. b. 23 chromosomes. c. 23 pairs ... (Read 181 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?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

A missense mutation that causes red blood cells to sickle in sickle-cell anemia. A missense mutation that causes red blood cells to sickle in sickle-cell anemia.
Thorax Anterior view of human body Thorax Anterior view of human body
Adult stem cells offer hope for cell therapy to treat diseases in the future Adult stem cells offer hope for cell therapy to treat diseases in the future
The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ... The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ...
The Fate of Amino Acids in Your Body The Fate of Amino Acids in Your Body
Partial map of disease genes on human chromosome 21 Partial map of disease genes on human chromosome 21
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library