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P.A Levene
Determined the basic structure nucelotides that make up DNA. Text book -
Linus Pauling
chemist, biochemist, peace activist, author, and educator. He was one of the most influential chemists in history and ranks among the most important scientists of the 20th century. wikipedia -
Fredrick Griffith
studied 2 strains of bacteria that cause pnumonia. he found that one strain could be changed into the other form. text book -
Oswald Avery
found a molecule that transformed the R strain of bactria into the S strain. Avery isolated different macromolecules like DNA, proteins, and lipids from killed S cells. Avery concluded that when the S cells were killed, DNA was realsed. text book -
Erwin Chargaff
analyzed amound of adenine, guanine, thymine andcytotsine in DNA of different species. he found that the amount guanine equals the amount of cytosine. the amount of adenine equals the amount of thymine. Text book -
Hershey and Chase
Published results of experiments that provided definite proof that DNA is a transforming factor. these expiriments involved bacteriophage whcich attacks bacteria. they used a tecnique called radioactive labeling to trace the fate of DNA and protein as the bacteriophages infected bacteria and reproduce. Text book -
james watson
he was the co-discoverer of the structure of DNA in 1953 with Francis Crick. -
Francis Crick
was the co-discoverer of the structure of the DNA molecule in 1953 together with James D. Watson. he played a crucial role in research related to revealing the genetic code wikipedia -
Rosalind Franklin
British biophysicist and X-ray crystallographer who made critical contributions to the understanding of the fine molecular structures of DNA, and RNA. Franklin is best known for her work on the X-ray diffraction images of DNA which led to discovery of DNA double helix. wikipedia -
Maurice Wilkins
His reachearch went towards X-ray diffraction, and to the development of radar. He is best known for his work at King's College London on the structure of DNA. In recognition of this work, he, Francis Crick and James Watson were awarded the 1962 Nobel Prize for Physiology or Medicine, "for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material. wikipedia
