The power of model organisms in human populations

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Unformatted text preview: In human populations: • light-skinned Europeans typically are homozygous for one particular allele of this gene • darker-skinned Africans, Eastern Asians, and Native Americans usually carry a different allele. The power of model organisms • In human populations: • These alleles differ by a single base pair. • These allelic differences are responsible for 24-38% of the differences in pigmentation between Africans and Europeans. The power of model organisms “Many groups, internationally, have paused to note that a simple one-base pair change out of three billion in our genome has contributed to some of the most terrible actions in the history of man.” ! ! ! ! ! ! ! ! ~Keith Cheng The power of model organisms • How could this genetic discovery impact society in a positive way? • Do you think it will have that effect? • In January of 2006, there were 28,000 Google hits for the gene SLC24A5 from more than 60 countries. E. coli is the most widely studied prokaryote • Most strains are benign and reside in the gut. • Useful characteristics: • Rapid reproduction (20 min) • Small size • Easily grown in the lab. E...
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This document was uploaded on 02/25/2014.

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