Question

how did rosalind franklin’s photo 51 affect the work of watson and crick? it was used to determine the physical structure of dna it was used to identify the four bases that make up dna it was used to determine the theory of independent assortment it was used to show dna was the molecule of inheritance

Explanation:

Rosalind Franklin's Photo 51 (X - ray diffraction image) was crucial for Watson and Crick to determine the double - helix physical structure of DNA. The other options are incorrect: identifying DNA bases is not what Photo 51 was for, the theory of independent assortment is related to Mendelian genetics (not DNA structure determination), and showing DNA as the molecule of inheritance was established through other experiments (like Avery - MacLeod - McCarty), not Photo 51.

Answer:

It was used to determine the physical structure of DNA