What is 'Turkheimer’s laws' in Biology?

This refers to a set of laws regarding the heritability of various behavioural traits and the relative influence of genes and environment on human behaviour. The first Turkheimer law states that all human behavioural traits are heritable. The second law states that the influence of genes on human behaviour is greater than the family environment. The final law argues that a significant number of behavioural traits may be explained neither by genes nor the family environment. Turkheimer’s laws were proposed by American psychologist Eric Turkheimer in his 2000 paper “Three Laws of Behavior Genetics and What They Mean”.

Source: The Hindu, 20/02/2019