A
genetic study reveals biological processes influencing whether we are
right or left-handed. Researchers from several universities from England and Netherlands such as the University of Oxford, St. Andrews, Bristol, and the Max Plank Institute in Nymegen, found a correlation between the tendency of the right or left hand use and the genes network that involved in establishing the left-right asymmetry in developing embryos.
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| A genetic study has identified a biological process that influences whether we are right handed or left handed. (Picture from: http://www.sciencedaily.com/) |
The
researchers believe that genes also help determine the difference in
the right and left brain, which ultimately affect the right or left hand
use. The findings, reported in the PLoS Genetics journal on mid-September 2013.
Humans
are the only species that showed a large deviation in the difference in
right and left hand. Approximately 90 percent of humans are
right-handed. Cause of this large difference remains a mystery to this
day.
The researchers which is led by Silvia Paracchini of the University of St. Andrews
interested to know which genes affect the use of the hands, as well as
investigate the causes and evolution of the right or left hand use.
Conducted genome-wide association studies
to identify common genomic variants that may correlate with the trend
of using the most preferred hand. The most significant variant contained in the gene PCSK6, which are involved in the determination of left and right on fetal development.
"The development of the use of the right and the
left hand is the result of a combination of various genes, environment,
and environmental pressure to be right-handed," said William Brandler. *** [EKA | FROM VARIUOS SOURCES | SCIENCEDAILY | UNIVERSITY OF OXFORD | KORAN TEMPO 4345]
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