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Neanderthal-human sex bred light skins and infertility
New Scientist ^ | 01/29/2014

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 ...


TOPICS: History; Science
KEYWORDS: evolution; godsgravesglyphs; helixmakemineadouble; infertility; neandertal; neandertals; neanderthal; neanderthals
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1 posted on 01/29/2014 8:00:03 PM PST by SeekAndFind
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To: SeekAndFind
And war.

And Will Ferrell.

2 posted on 01/29/2014 8:01:37 PM PST by Steely Tom (If the Constitution can be a living document, I guess a corporation can be a person.)
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To: Steely Tom; Lazamataz

Yeah, but would Laz hit it?


3 posted on 01/29/2014 8:03:03 PM PST by EricT. (ARBEIT MACHT FREI- now get back to work you taxpaying peasant!)
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To: EricT.; Lazamataz

yeah laz would he is a gene e us


4 posted on 01/29/2014 8:04:27 PM PST by bigheadfred
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To: SeekAndFind

So I can blame the cavemen for my diabetes?

5 posted on 01/29/2014 8:04:47 PM PST by 2ndDivisionVet (Jealousy is when you count someone else's blessings instead of your own.)
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To: SeekAndFind
Oh yeah, I would tap that...


6 posted on 01/29/2014 8:05:58 PM PST by GrandJediMasterYoda (Hitlery: Incarnation of evil.)
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To: SeekAndFind

The article showed the Neanderthal with dark hair and BLUE eyes. THAT is European.


7 posted on 01/29/2014 8:07:03 PM PST by cloudmountain
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To: SeekAndFind

Neanderthal or Nephilim? That is the question.


8 posted on 01/29/2014 8:08:42 PM PST by Olog-hai
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To: GrandJediMasterYoda

You have little idea of the variety people “tap”, LOL.


9 posted on 01/29/2014 8:08:44 PM PST by James C. Bennett (An Australian.)
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To: SeekAndFind; All

“A handful of sexual encounters between humans and Neanderthals made many of us what we are today...”

You know, I really, REALLY try to take The High Road when it concerns my ex-husband, LOL! *SNORT*


10 posted on 01/29/2014 8:10:39 PM PST by Diana in Wisconsin (I don't have 'Hobbies.' I'm developing a robust Post-Apocalyptic skill set...)
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To: SeekAndFind

all the decades of global warming science is pure lies, garbage.it’s getting cooler not warmer.

so I’m supposed to believe more science from these scientist idiots? lol don’t make me laugh

how much in gov grants are these morons getting?


11 posted on 01/29/2014 8:11:51 PM PST by Democrat_media (Obama ordered IRS to rig 2012 election and must resign)
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To: SeekAndFind

all the decades of global warming science is pure lies, garbage.it’s getting cooler not warmer.

so I’m supposed to believe more science from these scientist idiots? lol don’t make me laugh

how much in gov grants are these morons getting?

This is all lies


12 posted on 01/29/2014 8:12:44 PM PST by Democrat_media (Obama ordered IRS to rig 2012 election and must resign)
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To: 2ndDivisionVet
lol

cat wouldn't scratch it.

13 posted on 01/29/2014 8:13:45 PM PST by Zuben Elgenubi (NOPe to GOPe)
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To: SeekAndFind
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

I doubt that much breeding took place between our ancestors and Neanderthal. They were too different from us in spite of the National Geographic interpretive reconstructions that make them look much like us.

PS: Whatever happened to the so called modern spelling: Neandertal, without the "h"?

14 posted on 01/29/2014 8:16:53 PM PST by Inyo-Mono (NRA)
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To: SeekAndFind
caveman photo: geico-caveman geico-caveman-relaxing1.jpg

"Hot tub, cold box of wine, some Kenny G mp3's and nature takes it's course!"

15 posted on 01/29/2014 8:19:58 PM PST by Snickering Hound
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To: Olog-hai
Neanderthal or Nephilim? That is the question.

Amalek?

16 posted on 01/29/2014 8:20:27 PM PST by Inyo-Mono (NRA)
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To: SeekAndFind
I assume that this happened after humans invented beer.
17 posted on 01/29/2014 8:24:53 PM PST by CrazyIvan (Obama phones= Bread and circuits.)
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To: Diana in Wisconsin

I got my ex a license plate frame that said “I still miss my ex...but my aim is improving”

She loved it...


18 posted on 01/29/2014 8:30:12 PM PST by null and void (<--- unwilling cattle-car passenger on the bullet train to serfdom)
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To: SeekAndFind

Not that I believe in evolution, nor a separate human “species” call Neanderthals, however this reeks of left-wing reverse discrimination: “Look at those Europeans, how inferior they are, just a product of mutations...” in the same vain: “The Africans are the father’s and mothers of our race, the 1st humans”.

It’s all pseudo-science.


19 posted on 01/29/2014 8:41:02 PM PST by JSDude1 (Defeat Hagan, elect a Constutional Conservative: Dr. Greg Brannon!)
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To: GrandJediMasterYoda

She doesn’t look like she’d take ‘no’ for an answer.


20 posted on 01/29/2014 8:41:13 PM PST by TigersEye (Stupid is a Progressive disease.)
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