Albion
04-25-2012, 01:40 PM
I just thought I'd do a brief post on genetic kinship. This is to explain how we all diverge with each generation from our ancestors and how certain minorities have been subsumed into a larger population with little trace.
The key to understanding it is that we receive genes from both parents and so a male losses many of his father's genes and gains some from his mother and vice versa with females.
So a male is only 50% genetically related to his father and only 25% to his grandfather and it gets less and less the further you go back.
Here are a few charts explaining it:
http://upload.wikimedia.org/wikipedia/commons/4/4c/Cousin_tree_%28with_genetic_kinship%29.png
Start at the orange "self" box - each other box shows your relatives and the number in the red box is how genetically related you are to them.
http://upload.wikimedia.org/wikipedia/commons/d/d8/Gene-distribution.png
This is how many genes you share with each generation back. So if you go back 16 generations to a direct male or female ancestor then the relation to them is as low as o.4% - often you'd be more closely related to other people in your town than to your direct male or female ancestors.
In essence this means that a handful of other races in the European gene pool would not have too much detrimental effect and would be bred out over the course of a few generations.
However, a lot mixing between races would saturated the European gene pool with the genetics of other races meaning that they'd change the racial characteristics of future generations.
So some past small scale mixing is quite negligible, but the large scale mixing between races of today is a threat to the survival of our race. To see what large scale race mixing looks like and how it affects future generations one only has to look at Brazil, parts of the Caribbean and Madagascar. They have a history of large scale race mixing in the past which continues to this day and such large scale mixing has dramatically changed them from their European, Amerindian and Black ancestors.
http://en.wikipedia.org/wiki/Coefficient_of_relationship
The key to understanding it is that we receive genes from both parents and so a male losses many of his father's genes and gains some from his mother and vice versa with females.
So a male is only 50% genetically related to his father and only 25% to his grandfather and it gets less and less the further you go back.
Here are a few charts explaining it:
http://upload.wikimedia.org/wikipedia/commons/4/4c/Cousin_tree_%28with_genetic_kinship%29.png
Start at the orange "self" box - each other box shows your relatives and the number in the red box is how genetically related you are to them.
http://upload.wikimedia.org/wikipedia/commons/d/d8/Gene-distribution.png
This is how many genes you share with each generation back. So if you go back 16 generations to a direct male or female ancestor then the relation to them is as low as o.4% - often you'd be more closely related to other people in your town than to your direct male or female ancestors.
In essence this means that a handful of other races in the European gene pool would not have too much detrimental effect and would be bred out over the course of a few generations.
However, a lot mixing between races would saturated the European gene pool with the genetics of other races meaning that they'd change the racial characteristics of future generations.
So some past small scale mixing is quite negligible, but the large scale mixing between races of today is a threat to the survival of our race. To see what large scale race mixing looks like and how it affects future generations one only has to look at Brazil, parts of the Caribbean and Madagascar. They have a history of large scale race mixing in the past which continues to this day and such large scale mixing has dramatically changed them from their European, Amerindian and Black ancestors.
http://en.wikipedia.org/wiki/Coefficient_of_relationship