Watson and Crick had the following informations which helped them to develop a model of DNA.
(i) Chargaffs’ Law suggesting A = T, and C = G.
(ii) Wilkins and Rosalind Franklin’s work on DNA crystal’s X-ray diffraction studies about DNA’s physical structure.
(iii) Watson and Crick proposed
a. How complementary bases may pair
b. Semi conservative replication and
c. Mutation through tautomerism.
