The response indicates the primary and tertiary structure is expected to be altered as a result of the amino acid substitution. However, it affects all the levels.
Explanation:
Amino acids are the basic unit of the peptide chain that is arranged in the sequence in a particular sequence in this peptide chain. Amino acid substitution is crucial units or residuals changed to different nature amino acids.
This type of change leads to alteration in the primary structure of the protein which leads to change in the secondary structure and so on. Thus the X should be placed on all the levels of protein structure.
