Question

What findings did Watson and Crick determine from the image?

Answer 1

Watson and Crick determined multiple findings from the image, including the repeat dimensions of DNA and the double helix structure.

Step-by-step explanation:

Watson and Crick determined several key findings from the image:

1. The image confirmed Astbury's 0.34 nm repeat dimension of DNA.
2. Two more repeat structures were revealed in the DNA crystal, measuring 3.4 nm and 2 nm.
3. Using these numbers and other data, Watson and Crick built DNA models that revealed DNA to be a pair of antiparallel complementary nucleic acid polymers in the form of a double helix.

The structure of DNA was determined by Watson and Crick in the 1950s, with the help of Rosalind Franklin's X-ray diffraction data and other researchers' contributions. Their work ultimately led to the understanding of DNA's double helix structure.