What Is Life? 2nd Edition by Jay Phelan

Exercise 40

Deletions and substitutions are two types of point mutations. Which type is more likely to cause mistranslations of proteins?
A) Substitutions, because they shift the reading frame and cause downstream amino acids to be changed.
B) Substitutions, because one protein is substituted for another protein.
C) Deletions, because they shift the reading frame and cause downstream amino acids to be changed.
D) Deletions, because one protein is deleted.
E) None of the above is correct.