- 
  
  In 1886 Gregor Mendel discovered the fact that an organsims offspring inherit traits from its parents. What he discovered werethe Fundemental Laws of Inheritence.
- 
  
  
- 
  
  He proved that the transforming princepal actually was DNA.
- 
  
  Chargaff discovered the base pairs within DNA. i.e. A=T and C=G.
- 
  
  Hershey and Chase made the discovery that DNA is a genetic material.
- 
  
  Was the first person to propose that DNA had a helix like structure but the experiment he used to prove it failed due to an mistake on his part.
- 
  
  They discovered that the structure of DNA was a double helix.
- 
  
  Produced the X-rays of BDNA that helped Watson and Crick make thier discovery of the structure of DNA.
- 
  
  Britten was the one who discovered repetative DNA.
- 
  
  Kornberg discovered the imortance of Histones to Chromatin structure.
- 
  
  Cappechi discovered homologus recombination.
