In the screening of a DNA microarray,detection of a fluorescent signal from one of the genes indicates which of the following?
A) The labeled cDNA hybridized to that particular gene.
B) The labeled cDNA did not hybridize to that particular gene.
C) The experiment was not conducted correctly.
D) None of these choices are correct.

Question

In the screening of a DNA microarray,detection of a fluorescent signal from one of the genes indicates which of the following?
A) The labeled cDNA hybridized to that particular gene.
B) The labeled cDNA did not hybridize to that particular gene.
C) The experiment was not conducted correctly.
D) None of these choices are correct.

Quizplus · Accepted Answer

The detection of a fluorescent signal from one of the genes in a DNA microarray indicates that the labeled cDNA has successfully hybridized to that particular gene. This is because the labeled cDNA will bind to complementary sequences on the microarray, and the fluorescent signal indicates that there was binding to that particular gene. Therefore, option A is the correct answer. Option B would indicate the absence of hybridization, while option C is a general statement that is not related to the specific outcome of the microarray screening. Option D is not correct because the other options provide a clear explanation of the implications of detecting a fluorescent signal.

In the Screening of a DNA Microarray,detection of a Fluorescent