Dna

DNA throughout the years

By massarokravanis

  • Gregor Mendel

    Gregor Mendel
    Discovered the fundamental laws of inheritence. Genes come in pairs-inherited as direct units.

  • Thomas Morgan

    Thomas Morgan
    Established the chromosomal theory of inheritance.

  • Oswald Avery

    Oswald Avery
    Showed that Fred Grffiths "transforming principle" was DNA.

  • Erwin Chargaff

    Erwin Chargaff
    Isolated DNA from different organisms and measured the levels of each of the four nitrogenous bases.

  • Rosalind Franklin

    Rosalind Franklin
    Produced X-ray crystallography pictures of BDNA which Watson and Crick use to determine the structure of double-standard DNA.

  • Hershey-Chase

    Hershey-Chase
    Proved phage DNA, and not protein was the genetic material

  • James Watson

    James Watson
    Solved the structure of DNA

  • Francis Crick

    Francis Crick
    Solved the structure of DNA. Also, reasoned that the sequence of nucleotides in the molecule must function as a code. He called this Central Dogma.

  • Arthur Kornberg

    Arthur Kornberg
    Made a cell free system that replicates DNA.

  • Sydney Brenner

    Sydney Brenner
    Showed that rRNA was not the template for building proteins.