-
Frederick Griffith
-experimented on mice with streptococcus pneumonia bacteria
-led to discovery of cell transformation
-process in which bacteria can transfer genetic information -
Oswald Avery
-DNA is the “transforming principle”
-DNA is responsible for heredity -
Alfred Hershey & Martha Chase
-confirmed the genetic material found in living cells’ genes was DNA
-bacteriophage is a virus-infected bacteria
-made of DNA/RNA core and a protein coat -
Erwin Chargaff
-discovered DNA is primary component of genes
-equal proportions
-adenine=thymine
-cytosine=guanine -
Rosalind Franklin
-took x-rays of chromosomes
-this led to the discovery of the structure of DNA -
James Watson & Francis Crick
-Won Nobel Prize in Science (1962)
-made model of DNA structure
