OP is a retard. No such thing as a 'strong' or 'weak' genetic. It's either dominant or recessive. Dominant genetics are simply genetics that have been present longer than recessive. Those dominant genetics just show up more visibly because of the age of them, not because of the quality. The quality is all the same. All living organisms are as strong/weak as the next because we are all not extinct. Original man was pink skinned with black fur. As we gained sweat glands and lost the fur the need for melanin to block sun rays evolved. The black skin genetic appeared and the first MODERN man was black. Now it's going in reverse because there's little need of melanin since we use technology/stay inside more often and most of us don't live or sleep out in the jungle anymore.
Yoooooooooooooooooooooooo....