introduction

• which genomes have been sequenced?
• how does this information help us?

establishing DNA as the hereditary molecule (1868)

• what were the first molecules mistaken as the hereditary molecule?
• what is nuclein?

frederick griffith (1928)

• why was his experiment significant?
• what did he experiment with?
• what were the results of his experiment?
• conclusions

avery, mcleod, mccarty (1944)

• what did their experiment consist of?
• conclusions

hershey and chase (1952)

• why was their experiment significant?
• what was their experiment?
• results

chemical composition by the years