Friday, August 26, 2011

Sex with Neanderthals 'gave humans immune boost' - ABC News (Australian Broadcasting Corporation)


A US study says sexual encounters with archaic humans like the Neanderthals produced children who inherited key genes that have helped modern humans fight illness and disease.

"The cross-breeding wasn't just a random event that happened, it gave something useful to the gene pool of the modern human," said Stanford University's Peter Parham, senior author of the study in the journal Science.

Equipped with knowledge of the genome of the Neanderthals and the Denisovans, of whom a tooth and a finger bone were discovered in a Russian cave last year, researchers scoured the data for hints of what genes crossed over.

Scientists already knew that about 4 per cent of Neanderthal DNA and up to 6 per cent of Denisovan DNA are present in some modern humans.

The study took a close look at a group called HLA class I genes, which help the immune system adapt to fight off new pathogens that could cause various infections, viruses and diseases.

Now I know why I am still around.

Posted via email from poobumwee's posterous


Audi A4 Turbocharger said...

I recently came across your blog and have been reading along. I thought I would leave my first comment. I don't know what to say except that I have enjoyed reading. Nice blog. I will keep visiting this blog very often.

Anonymous said...

Hey there! I simply wish to offer you a huge thumbs
up for the great info you have got right here on this post.
I will be coming back to your blog for more soon.

My website - abjudging

Anonymous said...

Does your site have a contact page? I'm having trouble locating it but, I'd like to send you an email.
I've got some recommendations for your blog you might be interested in hearing. Either way, great site and I look forward to seeing it expand over time.

Here is my webpage: viagra duck