A set of basic assumptions, a general perspective that defines how to conceptualize and sutdy a subject, how to gather and interpret relevant data, even how to think about a particular subject. They specify what problems scientists will investigate and how they will go about the investigation.
It has guided a number of discoveries regarding genes and human behavior since the early part of the 20th century. "Nature via nurture".
A process in which proteins switch or turn on and off other genes.
Several genes, perhaps operating at different times during the course of development, will be the essence of genetic vulnerability.
The extent to which variability in a particular behavior (or disorder) in a population can be accounted for by genetic factors. It is a population statistic ranging from 0.0 to 1.0. The higher the number, the greater it is. It is only relevant for large populations, not individuals. It is a measure of what varies in a population, not what determines a behavior in a population.
Factors that include those things that members of a family have in common, such as family income level, child-rearing practices, and parents' marital status and quality.