Author Question: The conclusion of the Russian study of the interaction between genotype and environment suggested ... (Read 54 times)

sam.t96

  • Hero Member
  • *****
  • Posts: 570
The conclusion of the Russian study of the interaction between genotype and environment suggested that boys exposed to maternal rejection who also carried a specific variation of the DAT1 gene were more likely to be depressed after their experience. The conclusion the textbook draws from this research is that
 
  a. a variant of the DAT1 gene is the cause of depression.
  b. depression is a genetic disorder.
  c. maternal rejection is one of the causes of depression.
  d. prolonged exposure to dopamine may lead to depression.

Question 2

Research has shown that people who are socially isolated are vulnerable to a host of cardiovascular and infectious diseases due to increased levels of the stress hormone cortisol. A recent study, summarized in the textbook, provides evidence that this is effected by differences in
 
  a. the genomes of individuals who are high in cortisol levels.
  b. diet that encourages the production of cortisol.
  c. gene expression.
  d. Mendelian inheritance.



johnpizzaz

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

Answer: d: prolonged exposure to dopamine may lead to depression.

Answer to Question 2

Answer: c: gene expression.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

For a complete list of videos, visit our video library