Respuesta :
Answer: The correct answer for the blank is-
Double helix structure of DNA.
M. Wilkins and R. Franklin obtained high-resolution images of DNA fibers with the help of X-ray crystallography, which suggested other scientists like Watson and Crick to discover a double helical structure of DNA ( deoxyribonucleic acid). In other words, using the information of the work done by these two scientist, Wastson and Crick discovered double helical structure of DNA.