Navigation Links
What makes us left or right handed? New study rules out strong genetic factors
Date:10/1/2013

Around 10 per cent of the UK is left handed and that percentage remains consistent in many populations around the world. But why exactly someone is left or right handed remains unclear.

New research from The University of Nottingham's Professor John Armour and Dr Angus Davison, in collaboration with UCL's Professor Chris McManus, has ruled out a 'strong genetic determinant' in influencing handedness.

The researchers conducted a twin study examining the whole genome which contains hereditary information of nearly 4,000 subjects from the London Twin Research Unit to compare left and right handed participants.

The study 'Genome-wide association study of handedness excludes simple genetic models' has been published in the journal Heredity.

The study was unable to find a strong genetic factor in determining handedness. If there was a single major genetic determination of handedness, there should be a detectable shift between left and right handed people in the frequency of variants in that part of the genome and this isn't the case.

Professor Armour, Professor of Human Genetics at The University of Nottingham, said: "There should be a detectable shift between right and left handed people because modern methods for typing genetic variation cover nearly all of the genome. A survey that compared the whole-genome genotypes for right and left handed people should leave such a gene nowhere to hide."

Despite the absence of a strong genetic factor, it is widely believed that handedness is not only a matter of choice or learning. This study suggests, therefore, that genetic factors in handedness must be relatively weak and subtle, which has ramifications for future studies.

Professor Armour said: "It is likely that there are many relatively weak genetic factors in handedness, rather than any strong factors, and much bigger studies than our own will be needed to identify such genes unambiguously. As a consequence, even if these genes are identified in the future, it is very unlikely that handedness could be usefully predicted by analysis of human DNA."


'/>"/>

Contact: Fraser Wilson
fraser.wilson@nottingham.ac.uk
01-158-466-691
University of Nottingham
Source:Eurekalert

Related biology news :

1. The loss of a protein makes jump the tumor to the lymph node
2. Why spring is blooming marvelous (and climate change makes it earlier)
3. UH makes Princeton Reviews Green List 3 years in a row
4. Modern hybrid corn makes better use of nitrogen, study shows
5. Same gene that stunts infants growth also makes them grow too big
6. Cystic fibrosis makes airways more acidic, reduces bacterial killing
7. Diabetes drug makes brain cells grow
8. UCLA research makes possible rapid assessment of plant drought tolerance
9. Queens University Belfast makes significant cancer breakthrough
10. Waste cooking oil makes bioplastics cheaper
11. Treatment with fungi makes a modern violin sound like a Stradiavarius
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/30/2017)... , June 30, 2017 Today, ... developer and supplier of face and eye tracking ... Featured Product provider program. "Artificial ... innovative way to monitor a driver,s attentiveness levels ... from being able to detect fatigue and prevent ...
(Date:6/14/2017)... IBM ) is introducing several innovative partner startups at ... between startups and global businesses, taking place in ... startups will showcase the solutions they have built with IBM ... France is one of the most ... increase in the number of startups created between 2012 and ...
(Date:5/16/2017)... , May 16, 2017  Veratad Technologies, LLC ... of online age and identity verification solutions, announced today ... Identity Conference 2017, May 15 thru May 17, 2017, ... Building and International Trade Center. Identity ... globe and in today,s quickly evolving digital world, defining ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... President Andi Purple announced Dr. Suneel I. Sheikh, the co-founder, CEO and chief ... ), Inc. has been selected for membership in ARCS Alumni Hall of ...
(Date:10/11/2017)... , Oct. 11, 2017  VMS BioMarketing, a leading provider ... nationwide oncology Clinical Nurse Educator (CNE) network, which will launch ... for communication among health care professionals to enhance the patient ... office staff, and other health care professionals to help women ... cancer. ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking events company, ... today. The bold new look is part of a transformation to increase awareness, ... significant growth period. , It will also expand its service offering from its signature ...
(Date:10/10/2017)... SomaGenics announced the receipt of a Phase ... (Single Cell), expected to be the first commercially available ... from single cells using NGS methods. The NIH,s recent ... development of approaches to analyze the heterogeneity of cell ... for measuring levels of mRNAs in individual cells have ...
Breaking Biology Technology: