IDENTITY OF DNA AND DIVERSITY OF MESSENGER RNA MOLECULES IN NORMAL MOUSE TISSUES

Abstract

The formation of duplex structures by DNA or RNA with DNA entrapped in agar has been used as a means of assessing similarities and differences among the populations of nucleic acids in various tissues of the mouse. Competition reactions among labeled and unlabeled sets of molecules failed to show any differences in DNA polynucleotlde sequences, although large differences among the rapidly labeled RNA molecules isolated from different organs were demonstrable.