Skip to comments.Study turns human genetics on its head (less monkey...more variations)
Posted on 11/23/2006 4:02:06 AM PST by peyton randolph
...Using new technology to study the genomes of 270 volunteers from four corners of the world, researchers have found that while people do indeed inherit one chromosome from each parent, they do not necessarily inherit one gene from mom and another from dad.
One parent can pass down to a child three or more copies of a single gene. In some cases, people can inherit as many as eight or 10 copies....
(Excerpt) Read more at theglobeandmail.com ...
Pass me the cheese omelet, bacon and buttered toast.
The ninth paragraph in mentions the serious implications this has for "pre-natal scans". Is that Brit speak for ultrasounds, or does that include DNA testing as well?
At least three of the four ethnic groups a far from homogenous (genetically). Han Chinese is made out many people who adopted the basic Chinese culture starting in northeast China. The Japanese people's origins are still debated (traditionally, Shinto Japanese consider themselves all descended from the first emperor, and that they comprise the single, Yamada race. Most other scientists think that the Japanese have varied origins, with ancestors from the north, from Korea in the west, and even peoples from the south and Polynesia). And every American should know the heterogenity of Americans of European descent.
All humans are part of one race (and there are no subspecies) with very little genetic variation (the result of separation by at most some 5,000 years).
In the end, studies like these are meaningless when a city (NYC) can propose a law allowing people to decide for themselves what gender they are. And if you can decide what gender you are, which is determined at birth, then I guess you can decide what race you are and what color your eyes and hair are as well. It's all up to you and has nothing to do with reality.
That can make getting a driver's license and other daily activities (like choosing what restroom you should use) a bit tricky, I'd think, but so what? We're in the Age of Liberal Enlightenment.
|Mom's Gene||Dad's Gene||Child's Eye Color|
So my son has grey eyes. How does this simplistic model explain that?
Grey eyes are a slight color variation on blue.
You are confusing terms here. Races are subgroups within a species that can be simply distinguished from one another by differences in outward appearance, differences in vocalization, and differences in behavior and response to stimuli.
The existence of seperate human races is simply demonstrated by variations in skin, eye, and hair color, facial type, and typical body size and proportions and more complexly demonstrated by differing reactions to medical care and risks of various diseases of, for example, people from sub-saharan Africa vs. people from east Asia vs. people from Europe.
The fact that there is very little genetic variation between human races does not mean that they are indistinguishable or undetectable. In fact, there are clear marker genes in our DNA which allow for a quick determination of the racial background of the person donating the sample. This is why those companies that ask you for a DNA sample and promise to tell you your genetic background can do what they do.
Sounds very cool.
My father had blue eyes, my mother brown.
Of my two other brothers (one older, one younger) and myself, we have 1) Blue/Grey eyes 2) Hazel/Green eyes 3) Dark brown eyes.
I'm the middle. Also the tallest but the weakest (strongest brother presses 345lbs or so.) I'm also the laziest, but I don't think that's genetics. ; )
I just decided that I am black.
Now I can enjoy the benefits of affirmative action and all the other race-based govt. discrimination.
What do you think are the origins of the Ainu people? I have read a little about them. Some people think they have ancient European origins, some people don't think they came from Europe. Are the Ainu mixing with other Japanese or are they still pretty much isolated?
I'm sorry...couldn't resist.