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DNA History
1866
Gregor Mendel
1928
Frederick Griffith
Experiment with mice and bacteria led to the discovery that some bacteria can transform others
1933
Thomas Hunt Morgan
worked with Drosophilia led to certain ideas about genes including sex-linked traits
Work it out!
From the F1 generation:
Cross a red eyed male with a red eyed female.
What are the results?
1944
Oswald Avery
Continued Griffith’s experiment to discover the inheritance molecule. It was DNA.
1950
Erwin Chargaff
Looked at the structure of DNA. Found a pattern in the nitrogen bases. A = T and C = G. Called Chargaff’s Rule.
Chargaff's Rule:
Watch video then answer the questions
1952
Hershey and Chase
Proved that DNA was the genetic material with an experiment with bacteriophages.
Rosalind Franklin & Maurice Wilkins
Discovered the “X” shape or helix shape of DNA.
1953
James Watson and Frances Crick
"Watson and Crick"
Created the first model of DNA.