| Degraded DNA from the two 1993 Barrow specimens was visualized on ethidium bromide stained gels. |
| In some cases intercalative ability has been confirmed with the ethidium displacement assay or viscometry. |
| All the respiratory-deficient mutants previously isolated in our laboratory have been induced by treatment with acriflavine or ethidium bromide. |
| The stains acridine orange, ethidium bromide, azur II, eosin B, trypan blue, Giemsa solution and nitroblue tetrazolium were purchased from Sigma. |
| Thirty microlitres of PCR product was loaded on 1.5 per cent agarose gel electrophoresed and stained with ethidium bromide. |
| After electrophoresis, the agarose gels were stained with ethidium bromide and visualized by ultraviolet light. |
