Researchers Often Use Twins to Study Whether Variation in a Given

question 4

Essay

Researchers often use twins to study whether variation in a given behavior depends more on the variation in genes than on variation in the environment. Define the difference between monozygotic twins and dizygotic twins. If a researcher had two sets of twins (one pair of dizygotic twins and one pair of monozygotic twins) and both sets resembled each other in terms of their sense of humor, what is the researcher likely to conclude about the heritability of that trait?

---

Definitions:

Recovery Rate

The proportion of individuals who recover from a disease or condition out of the total number of individuals diagnosed, often used to evaluate treatment effectiveness.

Mental Illness

A wide range of mental health conditions that affect mood, thinking, and behavior, often requiring clinical diagnosis and management.

Adaptive Behaviour

Actions and skills that allow an individual to meet standards of personal independence and social responsibility suitable for their age and cultural group.

Sadness

An emotional state characterized by feelings of disappointment, sorrow, or unhappiness, often as a reaction to specific situations.