DNA NOTES
Subject:
Biology [1]
The Discovery of DNA Griffith and Transformation: Transformation: One strain of bacteria (harmless) had changed into disease-causing strain Meant gene with info was transferred from heat-killed into live cells Avery tried to break down the heat-killed bacteria with enzyme that would usually break up DNA, but it didn?t Avery concluded that DNA is nucleic acid that stores and transmits the genetic info from 1 generation to another Hershey and Chase Experiment: Studied bacteriophages (viruses) ?bacteria eaters? made of DNA/RNA and protein coat Bacteriophages inject DNA into bacteria, the viral genes act to produce many new bacteriophages and burst of out cell Conclusion: using radioactive markers, genetic material of bacteriophage was DNA not protein The Structure of DNA