Author Question: Martin and Matthew are identical twins. Matthew has obsessive-compulsive disorder, but Martin does ... (Read 41 times)

Yi-Chen · **on:** Jun 22, 2018

Martin and Matthew are identical twins. Matthew has obsessive-compulsive disorder, but Martin does not. In a biological research study, who would be the proband?

a. Martin
b. Matthew
c. Martin and Matthew's mother
d. Martin and Matthew's older sister

Question 2

In a genetic linkage study, which piece of information would be important?

a. whether behavior changes when individuals are exposed to a particular chemical or diet
b. whether the experimenter knows who is in the experimental group
c. the nationwide prevalence of the disorder under study
d. identifying family members who have the same disorder as the proband