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Evolution of sickle cell malaria

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Uploaded by on Jul 5, 2007

http://www.myspace.com/acorvettes
A gene known as HbS was the center of a medical and evolutionary detective story that began in the middle 1940s in Africa. Doctors noticed that patients who had sickle cell anemia, a serious hereditary blood disease, were more likely to survive malaria, a disease which kills some 1.2 million people every year. What was puzzling was why sickle cell anemia was so prevalent in some African populations.

How could a "bad" gene -- the mutation that causes the sometimes lethal sickle cell disease -- also be beneficial? On the other hand, if it didn't provide some survival advantage, why had the sickle gene persisted in such a high frequency in the populations that had it?

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Uploader Comments (Acorvettes)

  • I was actually thinking about this as an arguement against the creationist. Why would god create/design humans with a defence like this? Maybe I'll start working on that vid again. Great stuff!

  • Ya they have lots of holes in their "theories" and you don't see them doing the experiments that real scientist use to prove things. All they do is talk and it sounds crazy.

  • Don't forget to leave a rating (good or bad)thanks :)

Top Comments

  • @bdf2718 Remeber that Gawd and Jebus love you but want you to burn forever. It's in the babble.

  • This really Educated me about how Malaria/Sickle Cell Anemia Gene is passed down and spread to USA!

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All Comments (17)

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  • i want to test this theory for myself

  • this is good in educational research. very helpful

  • @phantomspellchecker

    Specifically, in the New Testicles.

    And it's the proof that the Xtian God does not exist. He loves us all. He will give us an infinite afterlife if somehow we manage to choose the correct one of 3 major Abrahamic religions and then choose the correct one of 30,000+ Xtian doctrines. Which we know because he'll tell us on the cosmic telephone that we chose correctly, just as he tells the followers of the other 29,999 doctrines.

    Only Satan would set things up that way.

  • Sickle cell malaria? WTF?!

  • what PBS/Nova TV series is this video from?

  • its a shame that people who don't get that gene but thats Darwin's nature selection, thats main principal, in the wild those people would ve died but thx to modern science they have a chance.

  • Sickle cell disease has been known to the peoples of Africa for hundreds of years. In West Africa various ethnic groups gave the condtion different names: Ga tribe: chwechweechwe

    Faute tribe: nwiiwii

    Ewe tribe: nuidudui

    Twi tribe: ahotutuo

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