APA Dictionary of Psychology

n. the branch of molecular biology that focuses on the study of the genome, or the complete set of DNA, within organisms, and the way the genes work and interact with each other and the environment. In psychology, genomic research identifies risk variants and biological pathways involved in major psychiatric conditions through genome-wide association studies, polygenic risk scores, and whole genome or exome sequencing; and examines gene and gene–environment interactions and their impact on behavior, development, and mental health. Compare genetics.