Conclusions are often drawn about the relative importance of ...

[shofmannx20]

Conclusions are often drawn about the relative importance of genetics based on the study of twins even for individuals who do not have a twin. Many twins, however are not representative of the average non-twin; many twins are born with low birth rate for example. This problem results from the
 
  a. assumption of representativeness.
  b. assumption of identicalness
  c. lack of care by researchers.
  d. eugenics assumption.

Question 2

A synonym for fraternal twins is
 
  a. dizygotic twins.
  b. monozygotic twins.
  c. allele twins.
  d. heterozygotic twins.

[Yixagurpuldink]

Answer to Question 1

Answer: a: assumption of representativeness

Answer to Question 2

Answer: a: dizygotic twins.