A new study says rare gene variants might explain why some people are left-handed

CGTN Europe

Roughly 10% of us are left-handed.   A new #study says rare gene variants might be the reason some of us are ‘southpaws’.  The TUBB4B #gene is involved in controlling the shape of cells and is almost three times more common in the left-handed. It may play a role in the development of the brain asymmetry that underlies the determination of a dominant hand.  Neurobiologist Clyde Francks of the Max Planck Institute for Psycholinguistics in the Netherlands is the senior author of the study published in the journal Nature Communications. #Science #lefthanded

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00:00 Roughly 10% of us are left-handed. Famous leftists include Barack Obama, Lady Gaga and Bill Gates.

00:06 A new study states rare gene variants might be the reason some of us are southpaws.

00:12 The TUBB4B gene is involved in controlling the shape of cells and is almost three times more

00:20 common in the left-handed. It may play a role in the development of the brain asymmetry that

00:25 underlies the determination of a dominant hand. The gene controls a protein that becomes

00:32 integrated into microtubes that provide internal structure for cells and start in the embryo stage.

00:39 Researchers say the new findings might have relevance in the field of psychiatry.

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