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Malaria: Selection pressure on humans. Malaria distribution. Sickle-Cell Anemia. Sickle Cell is caused by a single point mutation Red Blood cells become sickled Block blood vessles and have difficulty carrying oxygen load. Malaria/Sickle-cell Video.
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Sickle Cell is caused by a single point mutation • Red Blood cells become sickled • Block blood vessles and have difficulty carrying oxygen load
Malaria/Sickle-cell Video • http://www.pbs.org/wgbh/evolution/library/01/2/I_012_02.html