Two fields have played a leading role in biomedical research in recent years, the biochemistry of nucleic acids and immunology. Yet, with the exception of those aspects which have been concerned with antibody synthesis as an example of protein synthesis, there was until recently a lack of direct association between the two fields. Until quite recently the antigenicity of nucleic acids was still in doubt and indeed represented a controversial subject. Also, the exact role of the various nucleic acids in various stages of antibody synthesis was uncertain. These skepticisms and uncertainties...