(September 11, 2014 at 1:53 pm)sswhateverlove Wrote: Epigenetics argues that "natural selection" is not accurate, because genetic mutations don't actually assure any differences. When mutations can be expressed or silenced based on the environment, environmental factors seem to be much more important with regard to how something develops, how it functions, and what it passes to it's offspring.
Like I said, this is a massive misunderstanding of epigenetics and genetics in general.
It is true that most mutations aren't actually noticable. You might get something minor like an extra milimeter in length on your nose or slightly different color eyes or even two differently colored eyes. And there are a lot of silent mutations, where there's a mutation but it's in a part of a gene that isn't expressed anyway.
Epigenetics do change how much of a trait is expressed but they don't eliminate traits that already exist or introduce new traits. For example, epigenetics seem to play a role in the heriditary nature of alcoholism, smoking and obesity. Those aren't new traits for anyone. When you look at clear genetic conditions like Parkinsons or Lou Gherig disease, those have nothing to do with epigenetics and everything to do with genetics.
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"If you cling to something as the absolute truth and you are caught in it, when the truth comes in person to knock on your door you will refuse to let it in." ~ Siddhartha Gautama
"If you cling to something as the absolute truth and you are caught in it, when the truth comes in person to knock on your door you will refuse to let it in." ~ Siddhartha Gautama