First to isolate DNA, no one believed him and they thought he was wrong.
Showed how cells can be transformed due to DNA.
Showed how genes directed the enzymes that control the metabolic process.
He found that The number of adenine was equal to the number of thymine and the number of guanine was equal to the number cytosine.
They thought that DNA was responsible for transformation in cells.
Helped Watson and Crick find the structure of DNA.
discovered structure of DNA.
Took the X-ray photos that Watson and Crick used to discover the double helix.
He discovered that DNA was a molecule of genetic information.