Behavioral genetics is also spelled Behavioural genetics.
Other /More definition:
Behavioral genetics refers to the scientific study of how genotype interacts with environment to determine behavioral attributes such as intelligence, personality, and mental health It is the branch of genetics that studies the inheritance of behavioral and psychological traits ; study of the relationship between genetic or hereditary factors and personality traits.
Other definition:
Behavioral genetics refers to the study of interactions between genetic factors and environment in determining behavior; the study of how genes and environments combine to affect the
development of behavior and mental processes. Behavioral genetics is a branch of genetics that investigates possible connections between a genetic predisposition and observed behavior. Behavioral genetics, is likewise a branch of psychobiology that studies the genetic influence on cognition or behavior. Behavioral genetics is also spelled Behavioural genetics.