Question

who did not receive proper credit regarding the structure of dna at the time of its discovery?
a james watson
b rosalind franklin
c francis crick
d erwin chargaff

Explanation:

Rosalind Franklin's X - ray diffraction data was crucial for understanding the DNA structure. However, her work was not properly credited at the time. Watson and Crick used her data without full acknowledgment. Erwin Chargaff's rules (base - pairing rules: A - T, G - C) were also important but not as directly related to the structural discovery in the same un - credited way as Franklin's work.

Answer:

B. Rosalind Franklin