Question

Which of the following statements about the heritability of major depressive disorder MDD) is true?

a. Nearly 100% of people with genetic liability can be accounted for by the personality trait of dogmatism
b. Nearly 50% of people with genetic liability can be accounted for by the personality trait of aggressiveness.
c. The heritability is approximately 40% and the personality trait of neuroticism accounts for a substantial portion of this genetic liability
d. The heritability of MDD depends on whether the individual's mother or father had MDD
e. Less than 10% of people with genetic liability can be accounted for by the personality trait of perfectionism.

Answer 1

The correct answer is Option "C"

Step-by-step explanation:

According to twin studies, it has been estimated that the heritability of major depressive disorders (MDD) is around 37% to 40%. On average, people who share at least 50% of their genes with a family member that has MDD has more than 2 times at risk of having MDD themselves.

It has also been concluded from research that negative affectivity, or neuroticism, has a major link with the onset of MDD. In response to a stressful life, individuals with high levels of neuroticism are at a higher risk of developing MDD