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Posted by: lightlamp2
Posted by: And Im Here Too
Posted by: lightlamp2
Posted by: ImOnTheDole
Posted by: lightlamp2
Sounds confusing. How we can get rid of wisdom teeth but not defectsBecause we aren't killing off all the people with defects, so they can still pass on their genes. I'm not saying we should, but that's why.We don't kill people with wisdom teeth and some are born without them
Mostly because their parents didn't have them or carried the recessive gene for having no wisdom teeth and by random chance their child had no wisdom teeth.
Evolution is mad, random, and chaotic. And it's almost never drastic. It'd take millions of generations to get from an ape to a human, whereas it'd only take a generation to give a child blue eyes or small hands or big feet or height or anything along those lines. If that child passes on his genes his child may have blue eyes and the lot, and if that continues sooner or later maybe the entire species would have blue eyes. (Doubtful, though, seeing as how more people have brown eyes. It's far more likely we'll all have brown eyes in a few thousand years. Assuming we don't die off before then.)Well it would have to be random since it its a biological process. Its just hard to wrap my head around. But thanks for the explanation
Because the passing on of genes is random, as is the result. However, if both parents have a similar gene the child has a much higher chance of getting that gene than if only one parent had it.