Question

1. x - ray crystallography is a very important process that is used to help identify the structure of molecules. what exactly does this process show? a. a photograph of the molecule b. the atoms within the molecule c. patterns that can be used to interpret structure d. the crystal structure of the molecule 4. in 1951, four scientists were working on solving the structural puzzle of the dna molecule. two of those scientists had worked for many years to try to solve the puzzle, and even though their work became the foundation for the actual discovery of the structure of dna, they are often remembered. who were these two scientists? a. watson and crick b. chargaff and pauling c. wilkins and franklin d. mendel and darwin

Explanation:

1. X - ray crystallography provides patterns (X - ray diffraction patterns) that can be used to interpret the structure of molecules. It doesn't directly give a photograph of the molecule, not just the atoms within the molecule, and is not mainly about the crystal structure in a general sense for this context.
2. Rosalind Franklin and Maurice Wilkins' work on X - ray diffraction of DNA provided crucial data for understanding the DNA structure. Watson and Crick are often credited with discovering the DNA structure, but Franklin and Wilkins' prior work was foundational. Chargaff's rules were important but not the main long - term structural work here, and Pauling was more focused on protein structure at that time. Mendel and Darwin's work is unrelated to the DNA structure discovery in 1951.

Answer:

1. C. Patterns that can be used to interpret structure
2. C. Wilkins and Franklin