Author Question: In a study of twins, a researcher finds that 40 percent of dizygotic (DZ) twins and 40 percent of ... (Read 126 times)

tnt_battle

  • Hero Member
  • *****
  • Posts: 556
In a study of twins, a researcher finds that 40 percent of dizygotic (DZ) twins and 40 percent of monozygotic (MZ) twins share a trait. What is the researcher most likely to conclude about the trait?
 
  a. It is 40 percent concordant.
  b. It is 60 percent concordant.
  c. It is genetically determined.
  d. It is not genetically determined.

Question 2

What is the most likely cause of a disorder if both monozygotic and dizygotic twins show a high concordance rate?
 
  a. recessive genes
  b. dominant genes
  c. different environmental experiences
  d. shared environmental experiences



Anna

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

Answer: d.

Answer to Question 2

Answer: d.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

For a complete list of videos, visit our video library