Final answer:
The claim that incest is a biologically driven behavior is false, as incest taboos and avoidance mechanisms both biologically and socially discourage such relationships to prevent genetic issues.
Step-by-step explanation:
The statement that incest is a biologically driven behavior is false. Biologically speaking, there are mechanisms that discourage incestuous relationships due to the adverse effects on genetic diversity and increased likelihood of genetic disorders in offspring. Incest taboo, a universal social norm, prevents sexual relations between closely related individuals and has roots in both cultural practices and natural avoidance mechanisms. While some behaviors have biological underpinnings, it's not accurate to claim that all behaviors are strictly determined by biology due to the complex interaction between genetic predispositions and environmental factors, as highlighted in the principles of sociobiology. Different cultures may also have diverse norms regarding which relationships are considered too close for sexual relations.