Answer:
Quantitative RT-PCR
Explanation:
Reverse transcription polymerase chain reaction (RT-PCR), also known as quantitative Real-Time (RT) PCR, is a technique widely used in molecular biology laboratories in order to assess the expression level of target genes. This technique employs a transcriptase inverse that enables to obtain DNA from total RNA and then this total DNA is amplified as in a Polymerase Chain Reaction. The levels of the target genes are obtained by comparing their relative expression with one or more control genes.