Heritability refers to the extent to which _________ in any trait within a population are attributed ...

Heritability refers to the extent to which _________ in any trait within a population are attributed to inheritance.
 
  a. similarities c. mutations
  b. differences d. commonalities

Question 2

Correlational analysis evaluates the similarity of people with different degrees of genetic relatedness for traits that
 
  a. are unusual. c. remain the same throughout the life span.
  b. create abnormalities d. vary continuously.

Question 3

If genes play an important role in influencing a specific trait, siblings should be more alike in terms of this trait than will be
 
  a. identical twins. c. cousins.
  b. fraternal twins. d. people who are unrelated to them.

Question 4

Which of the following is true of Turner syndrome?
 
  a. It is caused by an abnormality of the sex chromosomes.
  b. It is caused by two X chromosomes.
  c. It affects women and men in about equal proportions.
  d. It is related to the mother's age when she becomes pregnant.