Sagot :
Answer:
The discovery of the Double Dna Helix was done by Watson and Crick.
Answer:
Chargaff's realization that A = T and C = G, combined with the vital work of X-ray crystallography by English researchers Rosalind Franklin and Maurice Wilkins, contributed to the discovery of Watson and Crick a three-dimensional, two-helical DNA model.
Explanation: