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Sickle Cell Genetics Paper

Johnny Pneumatic

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I've been so busy lately and my genetics paper for Biology has slipped up on me. My topic is Sickle Cell Anemia. I need informational sources on it, please help!:hb:
 
SkepticJ said:
I've been so busy lately and my genetics paper for Biology has slipped up on me. My topic is Sickle Cell Anemia. I need informational sources on it, please help!

What, precisely, are you looking for (i.e., what's the thesis of your paper)?

-TT
 
http://www.innvista.com/health/ailments/anemias/sickhist.htm

Paul is right. Anthony Allison had , I believe, lived in East Africa. He suspected that the distribution of SCA was related to malaria.
It appears that the mutation responsible for SCA confers resistance to malaria and so could spread through west Africa although itself a harmful mutation. Among descendants of west African slaves in the US, the condition has no positive benefit , while retaining it's negative effects.

Check out Thalassaemia too- another form of amaemia, widespread around the eastern Mediterranean. It seems to confer similar resistance to malaria.

It seems probable that many other human genes have evolved in response to selective pressure from malaria and other endemic disease. The SCA mutation is just a good example .
 

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