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Unformatted text preview: Name:_______________________ BMEN 289 Engineering Biology Homework Set #6 Due Thursday, Oct. 18 1. Let’s say we have a very simple DNA microarray of only four genes. We wish to compare gene expression profiles from cells in the arterial wall in normotensive and hypertensive rats (normal vs. high blood pressure). The tables below list the results for the relative amounts of gene expression ( x i ) after repeating an experiment twice. , , ln i hyp i i norm X x X = X i,hyp and X i,norm are the raw levels of expression of gene i in the hypertensive and normotensive arteries. Thus a large negative value indicates the level of expression is much higher in the normotensive arteries, while a small positive value indicates the level of expression is slightly higher in the hypertensive arteries, and zero indicates the level of expression is identical in each sample....
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This note was uploaded on 11/03/2009 for the course BMEN 289 taught by Professor Kaunas during the Spring '07 term at Texas A&M.
- Spring '07