Detection of low-abundance mRNAs by reverse transcription-polymerase chain reaction (RT-PCR) has become a standard technique to determine gene expression by tissues and cells in culture. The ability to determine relative or absolute copy number of specific mRNAs has been difJicult due to inadequate internal standards to control for sample-to-sample variation. The use of a synthetic RN... https://parisnaturalfoodes.shop/product-category/tangerine/