Oh my goodness mutations don’t have “purposes” ... they do (or don’t) convey advantages ... please have someone with a basic understanding of the science of genetics edit your draft tweets. 


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Mutations don't have a "purpose".
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Mutations survive for a reason though. In this case it was because it allowed people to survive a disease that killed others in a population that was being ravaged by malaria.
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Mutations still don't fulfill a "purpose" the headline is very poorly worded and there are lots better ways of expressing it. So why defend it?
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Because I’m not a pedantic pain in the ass.
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True, cutting corners and being slightly inaccurate is kind of your thing
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Yeah, articles that I research for a month with fact checkers is totally taking short cuts.
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mutations never occur for a purpose, they occur purely by chance. If they are beneficial, they get positively selected and pass to subsequent generations.
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We need to correct the idea that mutations happen for a purpose. They do not. Mutations are random, and sometimes confer some advantage that can be inherited.
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I recall being taught in Catholic elementary school that this was pretty much a disease carried by black people, no doubt as a way of discouraging mixed marriages.
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Not a disease I believe, but it is a condition that is mostly dominant among Af Am
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Right... misspoke... it remains, nonetheless as a memory from my elementary school days. I've not heard a great deal about it since.
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Does anyone with a science degree read these tweets before they go out?
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"purpose" fundamentally misunderstands it
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Fascinating read...
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It had a purpose?
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Tribalism is very animalistic and would mean overriding millions of years of evolution.
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