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Expert predicts males will be extinct in five million years… and the process has already started!

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Men are living on borrowed time, according to  a leading female scientist.

Professor Jenny Graves even claims the male  of the species is heading for extinction.

And chaps, the bad news doesn’t end there,  because the process may have already started.

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Battle of the sexes: A leading Australian expert says  ‘inherent fragility’ of the male sex chromosome will lead to male  demise

A CHROMOSOME  CRISIS

The female, or X, chromosome, contains around  1,000 genes, and females have two of them.

The Y chromosome started off with as many  genes as its female counterpart.

But over hundreds of millions of years it has  crumbled away, leaving fewer than 100 genes in modern man.

This includes the SRY gene, the ‘male master  switch’ that determines whether an embryo is male or female.

What is more, while women have two X  chromosomes, men have just one, ‘wimpy’, Y.

This is key, as the pairing allows the X to  make crucial repairs.

Lacking a mate, the Y chromosome finds it  more difficult to patch up mistakes and so decays away.

Professor Graves, one of  Australia’s most  influential scientists, believes that women will win  the battle of the sexes –  and in the most definitive way possible.

She  says that the inherent fragility of the male sex chromosome, the Y sex  chromosome, means that men are sliding towards extinction.

Professor Graves’s prediction hinges around  the number of genes on the male and female sex chromosomes.

The female, or X, chromosome, contains a  healthy 1,000 or so genes.

What’s more, girls and women have two of  them.

The Y chromosome started off with as many  genes as its female counterpart.

But over hundreds of millions of years it has  crumbled away, leaving fewer than 100 genes in modern man.

This includes the SRY gene, the ‘male master  switch’ that determines whether an embryo is male or female.

What is more, while women have two X  chromosomes, men have just one, ‘wimpy’, Y.

This is key, as the pairing allows the X to  make crucial repairs.

Lacking a mate, the Y chromosome finds it  more difficult to patch up mistakes and so decays away.

Professor Graves, of Canberra University, said: ‘The X chromosome is all alone in the male but in the female it has a friend, so it can swop bits and repair itself.

‘If the Y gets hit, it’s a downward  spiral.’

Giving a public lecture, the professor said:  ‘It is very bad news for all the men here.’

And there is more bad news.

In her talk at the Australian Academy of  Science, the professor described the remaining genes on the Y chromosome as  being mostly ‘junk’.

She said: ‘It’s a lovely example of what I  call dumb design.

‘It’s an evolutionary accident.’

However,  there is some good news.

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Battle of the sexes: Researchers say the Chromosomes,  shown here in a computer simulation, could lead to men becoming extinct – in  millions of years

Professor Graves estimates that it will take  five million years for the Y chromosome, and the men it produces, to disappear  all together.

Other experts urged men not to  panic.

Professor Robin Lovell-Badge, a sex  chromosome expert from the National Institute for Medical Research in London,  said that studies have shown the decay to occur in bursts.

And the Y chromosome has not lost any genes  for at least 25 million years.

He said: ‘I would say this is of no concern  whatsoever.’

Professor Chris Mason, of University College  London, said that even if the Y chromosome does crumble away in the next few  million years, medicine will have plenty of time to catch up.

He said: ‘Five or six million years should be  plenty of time for medical science to produce a fix and probably a Nobel  Prize.’

Professor Graves has her own  solution.

She says that when Y chromosome falls to  pieces, another chromosome could take on the role of the missing Y, leading to  the creation of a new species of human.

There is already a precedent for this in  nature, in the form of a Japanese spiny rat which has survived the loss of its Y  chromosome.

In fact, the  process may already be  underway in some isolated groups of people, said the professor.

She said: ‘We would not even suspect it  without checking the chromosomes.’



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