Question

multiple choice 1 point. in protein crystallography: generates an x - ray diffraction pattern from a protein crystal. constructs an electron - density map from the overall diffraction pattern of spots. reveals the location of atomic nuclei. causes a beam of x - rays to diffract into many directions.

Explanation:

In protein crystallography, X - rays are diffracted by a protein crystal. The diffraction pattern is used to construct an electron - density map which helps in determining the protein structure. X - rays diffract off the electrons in the atoms of the protein crystal, not directly revealing the location of atomic nuclei. The process starts with generating an X - ray diffraction pattern from a protein crystal, and then constructing an electron - density map from the diffraction pattern of spots. Causing X - rays to diffract is part of the process but the key is using the pattern to build the map.

Answer:

Constructs an electron - density map from the overall diffraction pattern of spots.