Sentences with phrase «fraternal twins suggest»

Studies comparing identical and fraternal twins suggest there is some heritable component to homosexuality, but no one believes that a single gene or genes can make a person gay.

The discovery that concordance (similarity between siblings) for divorce among adults is higher among identical than fraternal twins suggests that genes may predispose some people to engage in behaviors that increase the risk of divorce.58 If parents» personality traits and other genetically transmitted predispositions are causes of single parenthood as well as childhood problems, then the apparent effects on children of growing up with a single parent are spurious.

Not exact matches

The researchers found that the identical twin pairs behaved more similarly than the fraternal twin pairs in their trust behaviors but not their distrust behaviors, suggesting that genetics influence trust, but not distrust.

Russ makes three arguments: 1) A recent study that compared grit scores among fraternal and identical twins suggests that grit may be heritable to a large degree, which would make it unrealistic to expect schools or others to be able to alter it; 2) The twin study as well as a meta - analysis of grit research found that grit only explains about 2 - 3 % of the variance in achievement scores, which Russ thinks makes it a poor predictor of other outcomes; and 3) The meta - analysis suggests that grit may be highly correlated with conscientiousness, one of the Big 5 personality traits that psychologists have been studying for a long time.

Of course, «doublet» suggests that these word - pairs are identical twins when to a discerning solicitor they're often barely fraternal.