>>14050270Precisely, which is why you want proven fitness and a mate with good coevolved genetic compatibility for your own genes meaning you want someone within your ethnic group whose genes won't present a surprise and the fine tuned adaptations to environmental pressures will best able to express themselves.
Hybrid crosses always collapse into a mess unless selected harshly (through culling out) for generations.
>>14050647That isn't what is meant, this affects all ethnicities.
mutts have higher cancer and chronic disease rates because they have antagonistic genes.
>>14050724And these groups were all harshly selected by their environment and social circumstance. if you couldn't eat the food, survive the local diseases and mineral deficiencies, survive in the climatic conditions, etc, etc then your line died out.
An F1 offspring of two lines will embody the traits of both lines equally on paired chromosomes but once you get to the F2 generation all of these genes are mixed up randomly.
This is the reality, look at any hybrid breeding experiment and see that I'm right.
