Author Question: In a study of twins, a researcher finds that 40 percent of dizygotic (DZ) twins and 40 percent of ... (Read 123 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?

The FDA recognizes 118 routes of administration.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

For a complete list of videos, visit our video library