Question set 10

Question set 10 - Hank Greene Question set 10 1. British...

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Hank Greene Question set 10 1. British researchers used devices called “gene chips” to find the DNA variations linked to 7 common diseases. They analyzed a person’s genome and compared it to a healthy genome. Once they tested a sample space of 5,000 (2,000 infected individuals and 3,000 healthy individuals) they found 24 variants, arranged in a southease-to-northwest gradient across Britain, that were strongly linked to disease, and half of which were newly discovered. 2. Gene chips read the DNA sequence at up to 500,000 points across the genome. When the sequence is read researchers can compare the gene sequences of healthy individuals with the diseased ones, trying to pinpoint the responsible gene. 3. Natural Selection could have been working here because milk is a good source of protein and other vitamins and nutrients. Anyone who is able to drink milk therefore has a greater likelihood of surviving and reproducing fertile offspring than those who can’t drink milk. 4.
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This note was uploaded on 03/30/2008 for the course EBIO 1210 taught by Professor Demmig-adam during the Fall '07 term at Colorado.

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