ICYMI: If You're Smart, Thank Your Mom

Sorry, dads—research says kids' IQ comes from their mamas.
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Hey, moms! Your kid just aced her science test? Go ahead and pat yourself on the back. Because according to a recent post on Psychology Spot, kids' smarts come from their mamas.

That's right. While we've always known intelligence is hereditary, until a few years ago we thought much of it depended on dads, too. But it turns out we were wrong. Because several studies have now shown that since intelligence genes are located on the X chromosomes—of which women carry two—our children are twice as likely to get their brilliance from us.

And get this: Researchers in Glasgow interviewed 12,686 people between the ages of 14 and 22 every year since 1994, taking into account factors like skin-color, education, and socioeconomic status. You know what they found? The best predictor of intelligence was the IQ of the mother. In fact, the participants' IQs varied only an average of 15 points from that of their moms.

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Dads may try to argue that they deserve at least some credit for their kids' intellect. After all, they've got an X chromosome, too. But here's the thing: According to the post, all of us have conditioned genes that behave differently depending on whether they come from our mom or our dad. And some of those genes, like the ones that carry intelligence, apparently only work if they come from the mother. If that same gene is inherited from the father, it will be deactivated.

Sorry, dads. But look at the bright side: You may not be the one responsible for your kid's intellectual capacity, but the study revealed that other genes work the opposite way, and are only activated if they come from you guys.

Hollee Actman Becker is a freelance writer, blogger, and a mom. Check out her website holleeactmanbecker.com for more, and then follow her on Twitter at @holleewoodworld.

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