A mutation in which an extra nucleotide base is inserted into a gene 1 poi that codes for the synthesis of a protein would cause:

A. a polypeptide chain to be produced with only one amino acid changed in its sequence
B. transcription of mRNA and translation by RNA to be inhibited
C. a polypeptide chain to be produced with major changes in its amino acid sequence
D. protein building by the gene to be inhibited