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Friday, 10 July 2009

Time for distinction for chromosome Y (male)

Can you imagine this world without male ( this question sound came from male), because to day world look like is controlling by male not female just to give image that male are required for female life in the world. But really male required in existence of female life? How about cloning (male not required to give life of "doly")

The “stronger sex” is at threat and might be wiped off from the face of the earth.
A leading researcher has prediction that man are on the road to extinction.
Professor for leading on researcher in human sex chromosomes claims that the male Y chromosome was dying and could run out with in the next five million years.
But the expert said, men could follow the path of some rodent that could manages to reproduce despite not having the vital genes that make up the Y chromosome.
In the next future probably the second species of human could be born, you need a Y chromosome to be male isn’t it?
Three hundred million ago, the Y chromosome had about 1400 genes on it, and now it’s only got 45 left, so, at this rate, we are going to run out of genes on the Y chromosome in about five million years.
The Y chromosome is dying and the big question is what happen then she added (refer to women).
The male y chromosome has a gene SRY.
SRY switches on the development of testes and pumps out male hormones that determine maleness.
It was still unknown what would happen once the Y chromosome disappeared.
Humans can’t become parthenogenetic, like some lizard, because several vital genes must come from male.
But the good news is certain rodent species the male voles of Eastern Europe and the country rats of Japan have no Y chromosome and no SRY gene. Yet there are still plenty of healthy male mole voles and country rats running around. Some other gene must have taken over the job and we’d like to know what that gene is.
This conclusion came after the research found that women fight off the disease much better then men. The immune system of the women are stronger then men have this news was quoted by Canadian researcher on BBC news portal.
The female sex hormone estrogen gives women immune system added bite at fighting off infection.
Estrogen seems to counter enzyme which blocks the inflammatory process. The enzyme called Caspase-12, which is known to put a brake on the body’s first line of defense against harmful invaders such as bacteria and viruses. They worked on mice that lacked the caspase-12gene, and were thus extra-mely resistant to infections.


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