Experimental evidences for nucleic acids as genetic material

Experimental evidences for nucleic acids as genetic material

October 24, 2021

Experimental evidences for nucleic acids as genetic material

Timeline of events for the discovery of DNA as genetic material:

1868 J F Miescher  discover nucleic acid names nuclein

1890 Weismann – Substance localized in the cell nucleus

controls development.

1900 Chromosomes shown to contain hereditary information later shown to be     composed of protein and nucleic acids.

v1928 Griffith’s Transformation Experiment

1944 Avery’s Transformation Experiment (DNA not RNA not protein)

1953 Hershey-Chase Bacteriophage Experiment (DNA not protein)

1953 Watson & Crick proposed double-helix model of DNA

1956 First demonstration that RNA is genetic material in some of the virus

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