Which Discovery was Determined About DNA from X-Ray Diffraction Data

Question

Which discovery was determined about DNA from x-ray diffraction data?  
A) DNA is uniform in length.
B) DNA is short and narrow.
C) DNA has a repeating pattern.
D) DNA molecules are flat.
E) DNA molecules are round.

Accepted Answer

X-ray diffraction data showed that there is a repeating pattern in the structure of DNA, known as the X-shape. This discovery led to the understanding of the double helix structure of DNA. There is no evidence to support options A, B, D, or E.