How might protein synthesis execute differently if a mutation occurs?

The kind of mutation that would affect protein synthesis is one that causes a change in the position of the stop or start codon on the mRNA. This would cause either an incomplete translation or overlengthening of the required proteins on the ribosome. Nonetheless, other mutations such as substitutions would still be translated in the ribosomes to a complete polypeptide. The only implication is that the changes in amino acid content on the polypeptide, due to mutations, will affect how the polypeptide folds into secondary or tertiary proteins which would eventually affect its function.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.