Breaking news for all men..!!

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Qbone
@Qbone
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March 18, 2005


Some men spend their lives trying to work it out. Others simply give up.But scientists believe they have finally come up with an explanation about the way a woman's mind works.




That legendary feminine unpredictability has its basis in genetics, a study has found.

Certain genes that influence human personality and behaviour vary more widely in women than in men.

This makes it much harder to work out what any individual woman will be like.

While women have two X chromosomes, scientists have long believed genes are "randomly silenced" on one of these.

This is to avoid so-called "double dosing", having two genes that fulfil the same role.

The latest research, however, shows that 15 per cent of these genes are not actually silenced in women.

A further 10 per cent are active in some but not others.

Scientists say the findings mean women do get "double doses" of some genes after all.

Many are linked to the risk of various diseases but some help determine personality traits.

So if, for example, there was a gene on the X chromosome for happiness, this would mean women vary more greatly in how happy they are likely to be than men.

Whereas men would either have a healthy copy of the gene or not, women have the possibility of two working copies making them more happy.

So in a group of 100 women, there would be far more variation in happiness, moodiness, aggression or any trait affected by genetics than among 100 men.

"This could mean that women are much more variable than men," Professor Robin Lovell-Badge, head of developmental genetics at the National Institute for Medical Research, said.

"They could have greater variations in their susceptibility to disease but also in their behaviour and physical appearance.

"I always thought they were more interesting."

The findings come from a study, published in the journal Nature, in which scientists at the Wellcome Trust Sanger Institute in England genetically sequenced the human X chromosome.

http://www.news.com.au/story/0,10117,12581765-13762,00.html<BR>
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