Two barriers to the study of the effects of heredity on behavioural traits in humans are
A) lack of technology and difficulty in obtaining subjects.
B) certain ethical restrictions and variability in human environments.
C) lack of technology and certain ethical restrictions.
D) problems with the measurement of behavioural traits and the fact that twins are often unwilling to participate in genetic research.
E) traits are polygenic and difficulty in obtaining subjects.

Question

Quizplus · Accepted Answer

Certain ethical restrictions and variability in human environments are significant barriers to studying the effects of heredity on behavioral traits in humans. Ethical considerations limit the types of experiments that can be conducted on human subjects, and the wide range of environments in which humans live introduces a significant amount of variability that can be difficult to control for in studies.

Two Barriers to the Study of the Effects of Heredity