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| GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach | |
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Note: this topic is from 7/18/2011. |
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Posted on 07/18/2011 7:16:57 AM PDT by decimon
Some of the human X chromosome originates from Neanderthals and is found exclusively in people outside Africa, according to an international team of researchers led by Damian Labuda of the Department of Pediatrics at the University of Montreal and the CHU Sainte-Justine Research Center. The research was published in the July issue of Molecular Biology and Evolution.
"This confirms recent findings suggesting that the two populations interbred," says Dr. Labuda. His team places the timing of such intimate contacts and/or family ties early on, probably at the crossroads of the Middle East.
Neanderthals, whose ancestors left Africa about 400,000 to 800,000 years ago, evolved in what is now mainly France, Spain, Germany and Russia, and are thought to have lived until about 30,000 years ago. Meanwhile, early modern humans left Africa about 80,000 to 50,000 years ago. The question on everyone's mind has always been whether the physically stronger Neanderthals, who possessed the gene for language and may have played the flute, were a separate species or could have interbred with modern humans. The answer is yes, the two lived in close association.
"In addition, because our methods were totally independent of Neanderthal material, we can also conclude that previous results were not influenced by contaminating artifacts," adds Dr. Labuda.
Dr. Labuda and his team almost a decade ago had identified a piece of DNA (called a haplotype) in the human X chromosome that seemed different and whose origins they questioned. When the Neanderthal genome was sequenced in 2010, they quickly compared 6000 chromosomes from all parts of the world to the Neanderthal haplotype. The Neanderthal sequence was present in peoples across all continents, except for sub-Saharan Africa, and including Australia.
"There is little doubt that this haplotype is present because of mating with our ancestors and Neanderthals. This is a very nice result, and further analysis may help determine more details," says Dr. Nick Patterson, of the Broad Institute of MIT and Harvard University, a major researcher in human ancestry who was not involved in this study.
"Dr. Labuda and his colleagues were the first to identify a genetic variation in non-Africans that was likely to have come from an archaic population. This was done entirely without the Neanderthal genome sequence, but in light of the Neanderthal sequence, it is now clear that they were absolutely right!" adds Dr. David Reich, a Harvard Medical School geneticist, one of the principal researchers in the Neanderthal genome project.
So, speculates Dr. Labuda, did these exchanges contribute to our success across the world? "Variability is very important for long-term survival of a species," says Dr. Labuda. "Every addition to the genome can be enriching." An interesting match, indeed.
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About the study:
"An X-linked haplotype of the Neandertal origin is present among all non-African populations" was published in the July 2011 issue of Molecular Biology and Evolution. The authors are Vania Yotova, Jean-Francois Lefebvre, Claudia Moreau, Elias Gbeha, Kristine Hovhannesyan, Stephane Bourgeois, Sandra Be´darida, Luisa Azevedo, Antonio Amorim, Tamara Sarkisian, Patrice Hodonou Avogbe, Nicodeme Chabi, Mamoudou Hama Dicko, Emile Sabiba Kou' Santa Amouzou, Ambaliou Sanni, June Roberts-Thomson, Barry Boettcher, Rodney J. Scott, and Damian Labuda.
The study was supported by grants from the Canadian Institutes of Health Research.
I’ve seen that before.
YOU DID NOT ADDRESS THE RH FACTOR.
How can everyone be of ‘one blood’ when not all people have the Rh factor? PLEASE ADDRESS THIS.
Oh and you are dealing with a lot of IFs. If this and if that. Real technical. LMAO!
> Oh and you are dealing with a lot of IFs. If this and if
> that. Real technical.
Yes, of course, we know there are no conditionals in your story. You must’ve been there, right?
Now you’re avoiding. How can everyone be of ‘one blood’ when not all people have the Rh factor?
> Now you’re avoiding. How can everyone be of ‘one blood’
> when not all people have the Rh factor?
Ever hear of recessive genes? Blood type is due to genetic variations no more profound than eye color, skin color, etc. Any time an organ is transplanted, be it blood, or an eye, or a kidney, factors that can cause adverse reactions must be considered.
Noah Webster wrote his doctoral dissertation on the emergence of Indo-European languages. He was an expert on language, certainly much more so than you or I.
He clearly understood the underlying Greek in that passage of Acts 17. Contextually, Paul was referring to the Creation Story in Genesis, whether or not you believe it.
Webster clearly understood “one blood” to refer to “one ancestor”, not to a specific “blood type” due to genetic variations no more profound than those that affect eye color, hair color, nose size, height, or melatonin content of the skin.
And IF all humanity are NOT of one blood, meaning one ancestry, then for which blood type did Jesus shed His blood? What blood type did He have? What was his hair color? What color were His eyes? How big was his nose? How tall was He? What was the color of His skin?
I don’t know whether you are an evolutionist, but I once was a committed evolutionist that considered the Genesis account risible. However, the facts reveal that the Evolution Story is more fantastic, more far-fetched, far more improbable, and requires more blind faith, than the Creation Story.
None of us were there to observe, but there was One who was there and inspired others to record the Creation Story in His inspired Word.
At the end of the day, it is unlikely that I’m going to convince you, and you’re certainly not going to convince me.
This forum, and the internet in general, is not very different in essence than the Aeropagus in Acts 17.
I’m not an evolutionist. You still haven’t explained the Rh factor and why only some people have that and where it came from. But, yeah, you are not going to change my mind so we are essentially done.
> You still haven’t explained the Rh factor
Genetic variation. Like ABO factor, eye color, fingerprints, etc.
The Neandertal Enigma"Frayer's own reading of the record reveals a number of overlooked traits that clearly and specifically link the Neandertals to the Cro-Magnons. One such trait is the shape of the opening of the nerve canal in the lower jaw, a spot where dentists often give a pain-blocking injection. In many Neandertal, the upper portion of the opening is covered by a broad bony ridge, a curious feature also carried by a significant number of Cro-Magnons. But none of the alleged 'ancestors of us all' fossils from Africa have it, and it is extremely rare in modern people outside Europe." [pp 126-127]
by James Shreeve
in local libraries
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| GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach | |
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Note: this topic is from 7/18/2011. |
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