The figure below represents the results of a DNA microarray experiment that compared a cell line before and after treatment with drug. What would be an appropriate conclusion to draw from this data?
A)At one hour post induction none of the mRNAs that are in the figure are producing protein
B)Some of the genes that are presented may have significant amounts of mRNA in the cell prior to induction.
C)The amount of protein for each gene presented will show a similar increase as the mRNA.
D)At seven hours post-induction the treated cells should have the maximal amount of mRNA for each gene.

Question

The figure below represents the results of a DNA microarray experiment that compared a cell line before and after treatment with drug. What would be an appropriate conclusion to draw from this data? 
A)At one hour post induction none of the mRNAs that are in the figure are producing protein 
B)Some of the genes that are presented may have significant amounts of mRNA in the cell prior to induction. 
C)The amount of protein for each gene presented will show a similar increase as the mRNA. 
D)At seven hours post-induction the treated cells should have the maximal amount of mRNA for each gene.

Quizplus · Accepted Answer

The figure shows the relative mRNA expression levels of different genes before and after treatment with a drug. Therefore, it is reasonable to conclude that some of the genes may have significant mRNA levels before treatment (as seen in the black bars) and that the drug treatment may have altered their expression (as seen in the red bars). However, there is no information about protein expression or maximal mRNA levels.

The Figure Below Represents the Results of a DNA Microarray