Question

Which of the following studies led to the discovery of the Z-DNA structure?

a) X-ray crystallography of RNA
b) NMR spectroscopy of DNA
c) Electron microscopy of chromatin
d) Crystallography of RNA polymerase

Answer 1

In the 1950s, Rosalind Franklin used X-ray diffraction methods to demonstrate the helical nature of DNA, while Watson and Crick formulated the double-stranded structural model of DNA.

Step-by-step explanation:

In the 1950s, scientists Rosalind Franklin, James Watson, and Francis Crick made significant contributions to understanding the structure of DNA. Franklin used X-ray diffraction methods to demonstrate the helical nature of DNA, providing crucial data. Watson and Crick used Franklin's data, along with other researchers' findings, to formulate the double-stranded structural model of DNA. Their work led to the discovery of the Z-DNA structure.