Gene+for+Left-handedness+is+Found

[|BBC News] July 31, 2007 Scientists have finally found the gene that increases the odds of someone being left-handed. But this discovery has showed that carrying this gene can be very dangerous for a human because it can higher the risk of certain kinds of diseases. The Oxford University-led team say that carrying the gene can cause the risk of developing psychotic mental illness like schizophrenia. The gene is called LRRTM1 and one of its key roles is controlling which part of a brain controls certain functions. It plays a big part in speech and emotion. The brain of a left-handed person works differently then the brain of a right-handed person.

In a right-handed person's brain differeint sides of the brain control speech and emotions and the aren't on the same side like in a left-handed person brain. Scientists believe that LRRTM1 is responsible for this. This means that a left-handed person can have unusual brain functions. From all the researsh done it looks like left-handed people can have higher chances of certain illnesses and diseases than right-handed people. Shannon Johnson March 14, 2010