We sort of know all this, but what is important is that white skin and blue eyes gained an advantage that encouraged rapid intermarriage. This led to a huge expansion of that particular variation throughout perhaps a third of the global population. By that i mean that plausibly a third of the population may have Caucasian genetics as part of their blend.
That advantage is still observed and is actually likely to sustained. Caucasian culture has been dominant and available globally for only a short time and this allows for mixed marriages with all other identifiable groups to the disadvantage of any two other choices. This looks to be a small thing but the quickest way to join into the dominant culture is as a grandchild retaining a quarter of the genetics of a grandparent. This process substantially absorbed the Eastern native population and is slowly absorbing small ethnic groups everywhere anyway today.
In this manner a dominant culture genetically absorbs multiple hybrid strains preferentially to any minority group..
Spreading Genetics
Over
a hundred pyramids have been found in China that the ancient rulers
stated were ancient white skinned alien gods who had blonde hair and
blue eyes. These visitors apparently came to Europe.
Similar
pyramids have been found in Mexico and Peru. The pyramids possess
advanced technology that had the ability to move and carve large stones.
A similar race can be found in Egypt and Sumaria who were the pharaohs
and priests in ancient times. Many ancient writings claim our ancestors
came from space.
Danish
researchers have concluded that all blue-eyed people share a common
ancestor, presumably someone who lived 6,000 to 10,000 years ago. Blue
eyes are a recessive gene to some extent. The genetics of eye color are
complicated, and color is determined by multiple genes. So a mutation is
unlikely the cause. There are blue eyed people in Asia and particularly
Europe.
Assuming
the first blue-eyed humans was among the proto-Indo-Europeans who
subsequently spread agriculture into Western Europe and later rode
horses into Iran and India.
In humans, dark hair is a dominant trait; if one parent contributes a gene for dark hair and the other contributes a gene for light hair, the child will have dark hair.
White Skin Developed in Europe Only As Recently as 8,000 Years Ago Say Anthropologists
Humans
in Europe 8,000 Years Ago had dark skin Say Anthropologists dramatic
evidence suggests modern Europeans do not appear as their long ancient
ancestors did.
The
myriad of skin tones and eye colors that humans express around the
world are interesting and wonderful in their variety. Research continues
on how humans acquired the traits they now have and when, in order to
complete the puzzle that is our ancient human history. Now, a recent
analysis by anthropologists suggests that the light skin color and the
tallness associated with European genetics are relatively recent traits
to the continent. The samples are derived from a wide range of ancient
populations, rather than a few individuals, and they supplied
researchers with five specific genes associated with skin color and
diet. AAAS reports that the “modern humans who came out of Africa to
originally settle Europe about 40,000 years are presumed to have had
dark skin, which is advantageous in sunny latitudes. And the new data
confirm that about 8500 years ago, early hunter-gatherers in Spain,
Luxembourg, and Hungary also had darker skin: They lacked versions of
two genes—SLC24A5 and SLC45A2—that lead to depigmentation and,
therefore, pale skin in Europeans today. This dramatic evidence suggests
modern Europeans do not appear as their long ancient ancestors did.
Then,
the first farmers from the Near East arrived in Europe; they carried
both genes for light skin. As they interbred with the indigenous
hunter-gatherers, one of their light-skin genes swept through Europe, so
that central and southern Europeans also began to have lighter skin.
The other gene variant, SLC45A2, was at low levels until about 5800
years ago when it swept up to high frequency.”
An international team of researchers as headed by Harvard University’s Dr. Iain Mathieson put forth a study at the 84th annual meeting of the American Association of Physical Anthropologists recently stated.
Based on 83 human samples from Holocene Europe as analyzed under the 1000 Genomes Project,
it is now found that for the majority of the time that humans have
lived in Europe, the people had dark skin, and the genes signifying
light skin only appear within the past 8,000 years. This recent and
relatively quick process of natural selection suggests to researchers
that the traits which spread rapidly were advantageous within that
environment, according to the American Association for the Advancement of Science (AAAS).
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