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Unformatted text preview: o Genes for buildup of fat reserves were advantageous in times of famine, now deleterious b/c availability of food and sedentary lifestyle Genetic Variation Among Groups • Natural selection can maintain genetic differences in the face of gene flow if selection is strong enough • Blood types: o A, AB, B, 0 o AB = universal recipient o 0 = universal donor o A and AB more susceptible to smallpox o A less susceptible to black plague and cholera o 0 less syphilis • Lactose intolerance o Lose ability to digest lactose after weaning o Some retain ability into adulthood...
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This note was uploaded on 06/12/2011 for the course ANTH 101 taught by Professor Scarre during the Spring '07 term at UNC.
- Spring '07