The behavioral genetics approach . examines the direct influence of genes by studying behavior at the cellular leveL cannot explain how genes and environment influences behavior is a strict behavioral approach to studying the influence of the environment on the expression of physical traits in related individuals relies on the evaluation of dreams and the unconcious desires

relies on the evaluation of dreams and the unconscious desires.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

A trait refers to the specific features or characteristics possessed by a living organism. It is essentially transferred from the parent of a living organism to her offspring and as such distinguishes him or her. Some examples of traits in genetics are colorblindness, handedness, curly hair, height, complexion, weight, hair color, dimples, tongue-roll, etc.

This ultimately implies that, the manner in which living organism such as humans look and behave is largely dependent on both the traits inherited from their parents and the environment in which they grew up or stayed.

Hence, the behavioral genetics approach relies on the evaluation of dreams, unconscious desires, twin, family, and adoption studies which are used to investigate the gene possessed by living organisms or their environment interactions.