You are interpreting data on a DNA chip or microarray. You exposethe chip to a m

Question

You are interpreting data on a DNA chip or microarray. You exposethe chip to a mixture of two cDNA populations: one from cells thatwere not treated with a glucocorticoid hormone (untreated controls;labled with a red fluorescent dye) and a population from cells thatwere treated with glucocortoid hormones (glucocortoid-treated;labled with green fluorescent dye). You look at a spot on the chiprepresenting the gene for glutamyltransferase, a gene that isturned on after glucocortoid treatment, but is not expressed in itsabsence. What color should the spot representing theglutamyltransferase gene be?

a.) red
b.) green
c.) yellow
d.) no color, the spot is not labled

Explanation / Answer

b.) green

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