Author Question: In twin studies the key comparison involves determining how many pairs of twins either have the same ... (Read 80 times)

swpotter12 · **on:** Jun 22, 2018

In twin studies the key comparison involves determining how many pairs of twins either have the same disorder or are free of the disorder; this involves the calculation of

a. discordance rates.
b. concordance rates.
c. shared environment rates.
d. nonshared environment rates.

Question 2

Similar concordance rates for a given trait in monozygotic (MZ) and dizygotic (DZ) twins suggests that the trait may be due to

a. genetic causes.
b. endocrine causes.
c. environmental causes.
d. phonotypical causes.