Brainy sons owe intelligence to their mothers
Friday 28 June 1996
Intelligent men owe their brains to their mothers, according to research published today in The Lancet.
Growing evidence shows that several genes which determine intelligence appear to be located on the X chromosome, the one men inherit from their mothers .Any mutation on the X chromosome has more effect on a man than a woman because a woman inherits X chromosomes from both her parents, which tends to dilute the gene's impact.
But a man only has one X chromosome inherited from his mother, which is paired with the much smaller Y chromosomes from his father. Therefore, an intelligence-enhancing X gene has more of a chance of becoming the predominate gene, determining the man's basic intelligence, looks and character. It also works the other way; if the predominate gene is not as strong as it should be, the man is more likely to suffer mental retardation.
Professor Gillian Turner, the author of the study, said: "If the gene is the one that increases intelligence then its full effect will be seen in men, while in women the benefit is less pronounced. This explains why some men are extraordinarily intelligent." She concludes that if a man wants smart sons his best bet is to marry a smart woman.
The party's potential nominations read like a high school race for student body president
- 2 The awkward moment Sarah Palin raised $25,000 for Hillary Clinton's election campaign
- 3 Ball pool for adults opens in London
- 4 Amal Clooney gives excellent response to fashion question at European Court of Human Rights
- 5 Baldness could soon be treated using stem cells, scientists hope
Woman falls to her death as she celebrates marriage proposal at the edge of Ibiza cliff
Mia Khalifa: Pornhub star claims Drake sent her 'cringeworthy' naked photos on Instagram
Saudi preacher who 'raped and tortured' his five -year-old daughter to death is released after paying 'blood money'
The awkward moment Sarah Palin raised $25,000 for Hillary Clinton's election campaign
Ball pool for adults opens in London
9 reasons Greece's experiment with the radical left is doomed to failure
'We would evict Queen from Buckingham Palace and allocate her council house,' say Greens
Have we reached 'peak food'? Shortages loom as global production rates slow
Greece elections: Syriza and EU on collision course after election win for left-wing party
British grandmother Lindsay Sandiford faces execution by firing squad in Indonesia
Liberal Democrat minister defends comments suggesting immigration causes pub closures
£25000 - £35000 per annum: Recruitment Genius: A skilled .NET developer with e...
£25000 - £30000 per annum: Recruitment Genius: This IT support company are cur...
£30000 - £35000 per annum + Benefits: Ashdown Group: Marketing Manager - Marke...
£33000 per annum: Recruitment Genius: An External Relations Executive is requi...