posted
Scientists are still working hard to find some way to separate Eurasians from Africans genetically.
quote: In the Arctic, the Inuits have adapted to severe cold and a predominantly seafood diet. After the first population genomic analysis of the Greenland Inuits (Fumagalli, Moltke et al. 2015, Science doi:10.1126/science.aab2319), a region in the genome containing two genes has now been scrutinized by scientists: TBX15 and WARS2. This region is thought to be central to cold adaptation by generating heat from a specific type of body fat, and was earlier found to be a candidate for adaptation in the Inuits.
Now, a team of scientists led by Fernando Racimo, Rasmus Nielsen et al. have followed up on the first natural selection study in Inuits to trace back the origins of these adaptations.
To perform the study, they used the genomic data from nearly 200 Greenlandic Inuits and compared this to the 1000 Genomes Project and ancient hominid DNA from Neanderthals and Denisovans. The results, published in the advanced online edition of Molecular Biology and Evolution, provide convincing evidence that the Inuit variant of the TBX15/WARS2 region first came into modern humans from an archaic hominid population, likely related to the Denisovans.
"The Inuit DNA sequence in this region matches very well with the Denisovan genome, and it is highly differentiated from other present-day human sequences, though we can't discard the possibility that the variant was introduced from another archaic group whose genomes we haven't sampled yet." - said Fernando Racimo, lead author of the study.
The authors found that the variant is present at low-to-intermediate frequencies throughout Eurasia, and at especially high frequencies in the Inuits and Native American populations, but almost absent in Africa. TBX15 is a gene known to affect the human body's response to cold, and is associated with a number of traits related to body fat distribution. The authors speculate that the archaic variant may have been beneficial to modern humans during their expansion throughout Siberia and across Beringia, into the Americas.
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Obviously these scientists are lying. There never was any Denisova or Neanderthal admixture with Eurasians. That's what xyyman says also
Posts: 42922 | From: , | Registered: Jan 2010
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quote:Originally posted by the lioness,: Obviously these scientists are lying. There never was any Denisova or Neanderthal admixture with Eurasians. That's what xyyman says also
What happened to the backmigrations? Posts: 22234 | From: האם אינכם כילדי הכרית אלי בני ישראל | Registered: Nov 2010
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^ Ignore Lioness and her bad habit of putting words in others posts.
quote:Originally posted by Doug M: Scientists are still working hard to find some way to separate Eurasians from Africans genetically.
As if they ever stopped LOL
But yeah, I have noticed for the past several years now that scientists are postulating denisovan admixture for east Eurasians in particular. Denisovan is pretty much the East Asian version of Europe's Neanderthals. What's funny is that for a while the hypothesis is that Sahulians (Papuans & Australians Aborigines) are the ones who display denisovan ancestry via very robust archaic features as well as hairsuite bodies.
Posts: 26246 | From: Atlanta, Georgia, USA | Registered: Feb 2005
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quote:Originally posted by the lioness,: Obviously these scientists are lying. There never was any Denisova or Neanderthal admixture with Eurasians. That's what xyyman says also
What happened to the backmigrations?
There were no back migrations. Migrations are frontal. Back migrations are a fantasy of the backward minded.
All of these articles in recent years by Brenna Henn and many others are racist lies and fabrications.
All haplogroups originated in Africa point blank period, dead on the floor
Did you ever consider how the came up with the so called "haplogroups"?? Scientific racists made it up made it up. the whole field of genetics is an arm of white supremacy, when will Egyptsearch members realize this. It's not the interpretation. So called "genetics" and "DNA" is a false flag. Try getting a microscope and see if all of this stuff is labeled "R1" and "E1b1b1" They made that up and have us all following around these articles in circles. The whole thing is an illusion, matrix ****
Posts: 42922 | From: , | Registered: Jan 2010
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quote:Originally posted by the lioness,: Obviously these scientists are lying. There never was any Denisova or Neanderthal admixture with Eurasians. That's what xyyman says also
What happened to the backmigrations?
There were no back migrations. Migrations are frontal. Back migrations are a fantasy of the backward minded.
All of these articles in recent years by Brenna Henn and many others are racist lies and fabrications.
All haplogroups originated in Africa point blank period, dead on the floor
Did you ever consider how the came up with the so called "haplogroups"?? Scientific racists made it up made it up. the whole field of genetics is an arm of white supremacy, when will Egyptsearch members realize this. It's not the interpretation. So called "genetics" and "DNA" is a false flag. Try getting a microscope and see if all of this stuff is labeled "R1" and "E1b1b1" They made that up and have us all following around these articles in circles. The whole thing is an illusion, matrix ****
lol Poor you. It is remarkable why a dumbass such as yourself even comments.
Brenna Henn, in this 2014 interview on population genetics and population structure, considering African populations.
“African populations have the most genetic diversity in the world,” Henn said.“If you compared people from the Kalahari Desert to people from Mali, they’d be as different from each other [genetically] as Italians and Chinese people.”
Why are other populations of humans so much less genetically varied than Africans? The answer, Henn explains, lies in our ancestors’ history; the groups of people that migrated out of Africa and spread throughout other continents were smaller subsets of that original, genetically diverse population.
"AND WITHIN EACH OF THESE GROUPS THERE IS AN AMAZING AMOUNT OF DIVERSITY,[...] THE DIVERSITY IS INDIGNIOUS TO AFRICAN POPULATIONS":
Tracing Family Trees, And Human History, With Genetics
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Dr Elizabeth Atkinson completed her PhD at the Washington University in St. Louis medical school where she worked on an interdisciplinary project examining the genetic architecture and evolvability of brain traits in primates. She utilized quantitative genetic tools and QTL mapping to isolate the genomic regions that affect variation in gyrification (the folding pattern of the cerebral cortex) and characterized its modularity structure in a number of biological domains: genetics, development, anatomy, and functional connectivity. She currently works with Dr. Brenna Henn on biomedical and evolution-oriented projects utilizing the lab's extensive dataset from the African Genome Variation Project. Her work will focus on identifying genetic variants associated with disease risk in African populations, investigating the evolutionary history of these risk alleles, and employing quantitative and population genetics on this genome pool with the goals of designing a SNP chip tailored for African DNA and improving sequencing methods for human groups that are underrepresented in medical studies.
IRACDA NY-CAPS Postdoctoral Scholar Profile - Dr. Elizabeth Atkinson
quote:Originally posted by Djehuti: ^ Ignore Lioness and her bad habit of putting words in others posts.
quote:Originally posted by Doug M: Scientists are still working hard to find some way to separate Eurasians from Africans genetically.
As if they ever stopped LOL
But yeah, I have noticed for the past several years now that scientists are postulating denisovan admixture for east Eurasians in particular. Denisovan is pretty much the East Asian version of Europe's Neanderthals. What's funny is that for a while the hypothesis is that Sahulians (Papuans & Australians Aborigines) are the ones who display denisovan ancestry via very robust archaic features as well as hairsuite bodies.
Enjoy,
Brenna Henn on panmixia.
CARTA: Ancient DNA and Human Evolution – Brenna Henn: The Origins of Modern Humans in Africa
Brenna Henn (Stony Brook Univ) explores patterns of genetic diversity across Africa and models for modern human origins in this talk. She discusses whether genetic data is concordant with archaeological data and suggests directions for future research. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 30979]
posted
Jackass, Brenna Henn started this whole shote supremacist back migration trend with her seminal article " Genomic Ancestry of North Africans Supports Back-to-Africa Migrations"
go ahead keep sucking up to the cracker "science"
So you think because she mentioned Africa an diversity she is not promoting back migration at the same time?
are you that stupid ???
you've been played for a sucka
Posts: 42922 | From: , | Registered: Jan 2010
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quote:Originally posted by the lioness,: Jackass, Brenna Henn started this whole shote supremacist back migration trend with her seminal article " Genomic Ancestry of North Africans Supports Back-to-Africa Migrations"
go ahead keep sucking up to the cracker "science"
So you think because she mentioned Africa an diversity she is not promoting back migration at the same time?
are you that stupid ???
you've been played for a sucka
quote:however, the time and the extent of genetic divergence between populations north and south of the Sahara remain poorly understood
--Brenna Henn Published: January 12, 2012 DOI: 10.1371/journal.pgen.1002397:
"Genomic Ancestry of North Africans Supports Back-to-Africa Migrations"
Posts: 22234 | From: האם אינכם כילדי הכרית אלי בני ישראל | Registered: Nov 2010
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posted
^ LOL I don't know why Mathilda even bothers with her agent Lioness. Posts: 26246 | From: Atlanta, Georgia, USA | Registered: Feb 2005
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