In analyzing microarray data if the ratio of mRNA present before and after a particular treatment is 1 it indicates that
A)there was no change in mRNA levels before and after treatment.
B)the gene was not expressed either before or after treatment.
C)gene expression could not be detected.
D)mRNA was not detected before treatment.

Question

Quizplus · Accepted Answer

A ratio of 1 indicates that there was no change in mRNA levels before and after treatment. If there was an increase or decrease in mRNA levels, the ratio would be greater or less than 1, respectively.

In Analyzing Microarray Data If the Ratio of MRNA Present