Before revision: Differential display (also referred to as DDRT-PCR or DD-PCR) is the technique where a researcher can compare and identify changes in gene expression at the mRNA level between any pair of eukaryotic cell samples.
After revision: Differential display (also referred to as DDRT-PCR or DD-PCR) is a laboratory technique that allows a researcher to compare and identify changes in gene expression at the mRNA level between any pair of eukaryotic cell samples.