Key Historical Points

Rosalind Franklin and Maurice Wilkins used x-ray diffraction photographs to analyze the structure of DNA.

Watson and Crick were building a model of DNA at the same time and obtained Franklin’s results and discovered the double helix, and published that in 1950.

Chargaff’s Rule: states that DNA from any cell of all organisms should have a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine.

Остання зміна: понеділок 13 серпня 2018 08:32 AM