Problem 18.24 7 of 15> You are studying similarities and differences in how orga

Question

Problem 18.24 7 of 15> You are studying similarities and differences in how organisms respond to high salt concentrations and high temperatures. You begin your investigation by using microarrays to compare gene expression patterns of S. cerevisiae in normal growth conditions, in high-salt concentrations, and at high temperatures. The results are shown below with the values of red and green representing the extent af increase and decrease, respectively, of expression for genes a-s in the experimental conditions versus the control (normal growth) conditions High salt/control High temp/control

Explanation / Answer

Expression increases Expression decreases Salt (+), Heat (-) Salt (-), Heat (+) b, s, p a, c, d, e, f, g, i, j, k, n ,q, r l, m h, o DNA microarray is a high throughput technology that allows the study of various genes simultaneously. It works on the principle of base pairing hybridization. Red colour denotes the increase in the expression of gene of interest whereas green colour denotes the supression of the gene expression and yellow colour means no changes.

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