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  Discovered the fundamental laws of inheritance
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  Identified DNA as a distinct molecule
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  Idenifed nuclein as a nucleic acid and providing its present chemical name.
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  He proposed that inherited traits would be inherited via a 'giant herietary model' made up of 2 mirror stands that would replicate in a semi-conservative fashion using each stand as a template.
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  He made the first attempt to solve the structure of DNA and took the first x-ray photographs of biological macromolecules found with living cells.
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  Researching problems relatred to the determination of structure of protiens which resulted in the determination of the structure of insulin.
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  He figured out that the C and G units were the same and the A and T units were the same, which lead to the discovry of the double helix structure
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  She discovered the DNA molecule is shaped like a twisted ladder.
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  Discovered the double helix, tth twisted ladder structure of DNA
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  Provided evidence for double helix structure
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  He crystalised genes he was the first to do it
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  - Dechipered the genetic code
- Found out how DNA was read
- DNA is universal to all life
 
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  Figured out the ability to reconstruct functional DNA in foreign
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  discovered genetic fingerprinting which is used in police identification.