Skip to comments.Father of all humankind is 340,000 years old
Posted on 03/08/2013 7:34:13 PM PST by haffast
DNA evidence has revealed that the oldest known common male ancestor is 340,000 years old, more than twice as old as previous estimates.
New Scientist reports that the sample comes from a recently deceased man named Albert Perry. After the African-American South Carolina man died, one of his relatives submitted a sample of his DNA to a company called Family Tree DNA for analysis.
All previously compared DNA samples pointed to a common Y chromosome traced back to man who lived between 60,000 and 140,000 years ago. But Perrys DNA sample broke the trend, not matching up with this common ancestor.
"It's a cool discovery," Jon Wilkins of the Ronin Institute in Montclair, N.J., told New Scientist. "We geneticists have been looking at Y chromosomes about as long as we've been looking at anything. Changing where the root of the Y-chromosome tree is at this point is extremely surprising."
After the initial tests on Perrys DNA, geneticists at the University of Arizona conducted further tests to confirm the anomaly. The Y chromosome in Perrys test matched up with those of 11 men who all lived in one village in Cameroon.
University of Arizona researcher Michael Hammer says Perrys DNA suggests there may have been an earlier species of humans that went extinctbut not before interbreeding with the more modern version of man.
(Excerpt) Read more at news.yahoo.com ...
I'll be the first one to tell you that we barely know anything, and I'm a scientist.
What does it suggest about the history of a wrecked car when the 'car'cass is in Los Angels and in the glove box are gas station receipts from NYC, a later one from Cleveland, and a still later one from Tulsa?
Can you determine with certainty from this that the car passed through Phoenix or Las Vegas or Reno?
New headline: Missing Link Discovered in South Carolina!
So this guy might have lived to 350,200 years if he had just cut back on strips of bacon.
|GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach|
Thanks haffast.After the African-American South Carolina man died, one of his relatives submitted a sample of his DNA to a company called Family Tree DNA for analysis... All previously compared DNA samples pointed to a common Y chromosome traced back to man who lived between 60,000 and 140,000 years ago. But Perrys DNA sample broke the trend, not matching up with this common ancestor.It means that the earlier studies suffered from severe constraints of data.
The Y chromosome in Perrys test matched up with those of 11 men who all lived in one village in Cameroon. University of Arizona researcher Michael Hammer says Perrys DNA suggests there may have been an earlier species of humans that went extinct...No, it shows, once again, that the reason for apparent greater genetic variability in Africa isn't due to it being the oldest, it shows that populations are genetically narrowed by isolation.
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
Hard times for sure.
Bacon DNA isn't that old.
There’s another view on that. He might have lived past 360k if it weren’t for all the nannies nagging him about his diet! ;^)
Would you believe what an alien told you anyway?
Oh, man! And I forgot to get him a card this year...
Difficult, maybe. Hard, probably not.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.