Genetic determinism seeks to attribute the causes of human behavior and social dynamics to biological inheritance. It is a double reductionism that confuses observation with explanation and biological origin with function. It lacks scientific grounding, but is broadly used to justify for all kinds of social pathologies, from the excesses of the modern-day version of capitalism to the proliferation of war. Its maximum expression is found in Sociobiology, a school of thought that seeks scientific legitimacy for genetic determinism and social Darwinism. The ‘new biology’, however, holds social implications that counter these notions and point towards human potential to build a cooperative, mutualistic society.