Question: As you know Griffiths, and Avery, MacLeod and McCarty first experimented with the concepts of lateral (horizontal) gene transfer in bacteria as it relates to transformation. Please explain how they utilized this concept to argue for particular molecules being the hereditary material (the gene) and how did the use of DNase and RNase enzymes allow Avery, MacLeod and McCarty to suggest that they had more clearly indicated nucleic acids as the most likely candidate for the title genetic materials. What about the experiments of Heshey and Chase allowed this argument to be made even more strongly.