Should one be very skeptical of the claim that genes have any effect on psychological traits?
The central practical take-away from behavioral genetics: 1) be very skeptical of environmental interventions of claimed large effect; the more heritable the less likely intervention will work, 2) you can relax as a parent. http://www.rationaloptimist.com/blog/the-genes-of-human-behaviour/ …pic.twitter.com/jV7T7L5ykf
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Most obvious one is the primary maleness gene on Y chromosome. https://en.wikipedia.org/wiki/SRY
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I recall a twin cohort study of adolescent delinquency that supports this. They found that shared environment had almost no effect on the probability of kids becoming criminals.
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