How might pausing be detected? Match the words in the left column to the appropriate blanks in the sentences on the right. in vitro the cell DNA in situ separation in vivo hybridization gel electrophoresis and autoradiography radiolabeled nucleotides microscopy analysis fluorophore Reset Help Pausing can be detected by hybridization in experiments involving transcription in vivo with radiolabeled nucleotides. After incubation, isolate labeled RNA products and subject to gel electrophoresis and autoradiography. Any paused species will accumulate and can be detected.