Posted on 01/29/2014 8:00:02 PM PST by SeekAndFind
IT IS surprising what a little hanky-panky can do. A handful of sexual encounters between humans and Neanderthals made many of us what we are today, affecting both our appearance and our vulnerability to disease. But the genetic legacy left by the Neanderthals also highlights just how different we are from our sister species.
[SNIP]
... the adaptation took thousands of years to become universal. A third study published this week describes a DNA analysis of one person who lived in Stone Age Europe about 7000 years ago 40,000 years after any Neanderthal interbreeding. His genes suggest his skin was dark (Nature, doi.org/q74). It may be that the Neanderthal keratin affected early Eurasians' hair instead, perhaps straightening it.
Not all of the Neanderthal genes are beneficial. Sankararaman and Reich found that our Neanderthal inheritance includes several genes that make us susceptible to diseases including type 2 diabetes, lupus and Crohn's disease.
Some of the genes, meanwhile, appear to have led to fertility problems. For instance, Sankararaman found that the X chromosome is almost devoid of Neanderthal DNA. This suggests that most Neanderthal DNA that wound up on the X chromosome made the bearer less fertile a common occurrence when related but distinct species interbreed and so it quickly disappeared from the human gene pool. Neanderthal alleles were swept away, says Sankararaman.
(Excerpt) Read more at newscientist.com ...
Yes, visual clues are important with cave women.
Dont worry too much - the Chinese will be able to reconstruct pretty Europeans.
Reverse engineering?
“They sequenced a Neanderthal genome and discovered it carried genes that also appear in the genomes of people of European and Asian descent: our species must have interbred with Neanderthals.”
Could not both lines have received these genes from a common ancestor? Do they think the human/Neanderthal line parted after, say, Australopithecus?
‘The Neandertal Enigma’
I have the book also and my dentists was surprised to find that after repeated attempts he could not numb me for a root canal. We did it anyway. I have short legs for 6’1”, wear a size 13 shoe,(sorry ladies that is a myth), bony brow ridge, my height is in my torso, I am very strong, have long arms, my resting heartrate is from 47 to 52, and I am damned ugly.
I think there is a good possibility that I am at least somewhat a Neanderthal. Also a good possibility that I could make a living in a circus sideshow. Also possible that the author of the Neandertal Enigma is full of it.
Sheffield scientists investigate a sperm-boosting nutrient which may help infertile couples (from the tomato)
11 April 2016
http://www.sheffield.ac.uk/news/nr/fertilitystudy-1.566319
Lead Levels Linked to Male Infertility
http://www.freerepublic.com/focus/f-news/841654/posts
Plunge in Teen Pregnancy?
(Dropping sperm count, infertility in young males)
http://www.freerepublic.com/focus/f-news/1627489/posts
Widespread Male infertility sweeping the globe...
http://www.freerepublic.com/focus/news/2553542/posts
Hope for infertility: ‘Infertile’ couple gives birth thanks to cutting edge natural treatment
http://www.freerepublic.com/focus/news/2659197/posts
and this is just amusing:
IRS: homosexuality is a choice, no tax deduction for gays contracting surrogates
http://www.freerepublic.com/focus/news/3386711/posts
and thanks again Foundahardheadedwoman:
http://www.freerepublic.com/focus/chat/3117297/posts?page=45#45
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