Wilkins and franklin studied the structure of dna using a technique to examine molecules, and watson and crick determined that the shape of the molecule was a

The right answers are X-ray crystallography and double helix.

In molecular biology, the double helix is the secondary structure of the double-stranded DNA as popularized by James Watson, co-discoverer of the three-dimensional structure of DNA with Francis Crick on the basis of the X-ray crystallographic work carried out by Rosalind Franklin and Raymond Gosling, through his book The Double Helix, published in 1968.

i believe it's True cos I've read this once