Researchers Are Looking for Better Treatments for Breast Cancer

Multiple Choice

Researchers are looking for better treatments for breast cancer.For a particular DNA microarray assay (DNA chip) ,cDNA has been made from the mRNAs of a dozen patients' breast tumor biopsies.What would the researchers be looking for in this type of assay?

A) a particular gene that is amplified in all or most of the patient samples
B) a pattern of fluorescence that indicates which cells are overproliferating
C) a pattern shared among some or all of the samples that indicates gene expression differing from control samples
D) a group of cDNAs that act differently from those on the rest of the grid