Explain how heritability might play a role in divorce, and give an example
Anyone can help me out with this one?
Twin studies show that the concordance rates for divorce are higher for MZ twins than for DZ twins, indicating that divorce may be partly explained by genetic factors. Even though divorce is commonly assumed to be determined purely by psychological and social factors, family events such as divorce do not occur at random. The gene-environment correlation means that environmental experience is itself correlated with genetic background. To the extent that background, personality, or physical characteristics are influenced by genes, the family experience is also correlated with those genes. For example, a divorce may be partly determined by impulsivity, which, in turn, is influenced by genes. McGue and Lykken speculated that divorce may be a consequence of personality factors that are partially shaped by genetics: for example, a tendency toward thrill-seeking, relative insensitivity to social sanctions, or early puberty that could lead to attention for traits unrelated to character and attract less committed mates. So, while any individual divorce cannot be directly attributed to a "divorce gene," genetic heritage affects the environment in ways that can affect the stability of an individual marriage.
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