population genetics is all about gene frequencies evolution = a change in gene frequencies no change...
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![Page 1: Population genetics is all about gene frequencies Evolution = a change in gene frequencies No change = genetic equilibrium = absence of evolution](https://reader036.vdocuments.mx/reader036/viewer/2022062714/56649d595503460f94a39a24/html5/thumbnails/1.jpg)
Population genetics is all about gene frequencies
Evolution = a change in gene frequenciesNo change = genetic equilibrium = absence of evolution
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HemoglobinStructure2 alpha chains (C 16): 141 aa2 beta chains (C. 11): 146 aa
Natural selection in humansE.g., hemoglobin
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Sickle cell anemia
Sixth code word from one end of the beta gene.
HbA HbS
Possible genotypes
HbA/HbAHbA/HbSHbS/HbS
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Relationship : malaria and sickle cell anemia
Distribution of HbS Distribution of malaria
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Malaria
HbA/HbSResists malarialparasite