advertisement
13 September 2013

Genes determine if you're right- or left-handed

Scientists have identified a network of genes that influences whether you are right-handed or left-handed.

0

Scientists have identified a network of genes that influences whether you are right-handed or left-handed.

The researchers did so by looking at developing embryos.

"The genes are involved in the biological process through which an early embryo moves on from being a round ball of cells and becomes a growing organism with an established left and right side," study first author William Brandler, a doctoral student in the functional genomics unit at Oxford University in England, said in a university news release.

This gene network also may help establish left-right differences in the brain, which in turn influence whether a person is left- or right-handed, according to the study, published on 12 September in the journal PLoS Genetics.

These findings, however, don't completely explain right- and left-handed differences in people, the researchers said.

"As with all aspects of human behaviour, nature and nurture go hand-in-hand," Brandler said. "The development of handedness derives from a mixture of genes, environment and cultural pressure to conform to right-handedness."

About 90% of people are right-handed. Humans are the only species with such a strong bias in handedness.

More information

The Nemours Foundation has more about being left-handed.

Copyright © 2015 HealthDay. All rights reserved.

 

More:

GeneticsNews
advertisement

Read Health24’s Comments Policy

Comment on this story
0 comments
Comments have been closed for this article.

Live healthier

True or False? »

How to eradicate 'earworms' Hearing aids may keep seniors' minds sharp

Is ‘selective hearing’ actually a thing?

Why can your partner never hear the phone ringing? It could be that their brains are wired to ignore some sounds.

Swollen ankles? »

Gout - from Natural Standard Your ankles Is your ankle starting to rankle?

13 reasons why your ankles are swollen

Are your feet or ankles feeling swollen, heavy and bloated? Here are some causes to look out for.