Question

Environmental influences can determine whether a gene is expressed. For some people, that will be decisive in whether they develop a psychological disorder. This best illustrates the need for________.

Answer 1

Answer:

Research on epigenetics.

Explanation:

Epigenetics is the study of heritable changes in the gene expression that don't involve changes to the underlying DNA sequence of the subject. This means that environmental influences can determine how a gene is expressed; it could affect them as well. Therefore, more research on this subject is necessary.