Watson and Crick Discovered

Question

Watson and Crick discovered:
A) that DNA is made of nucleotides.
B) that DNA is the genetic material.
C) X-ray crystallography.

Accepted Answer

Watson and Crick are credited with determining the double helix structure of DNA, but the discovery that DNA is made of nucleotides was foundational knowledge they built upon. They did not discover that DNA is the genetic material or X-ray crystallography; those were established by other scientists.