A mutation causes a G to be inserted after the first base of the codon for tryptophan. How will this affect the growing polypeptide chain?
A) It will not be affected.
B) The reading frame will be shifted to the left, and the wrong amino acids will be added from this point on.
C) There will be a single amino acid substitution.
D) Elongation will stop prematurely.
E) None of the above

Question

Quizplus · Accepted Answer

The insertion of a nucleotide causes a frameshift mutation, altering the reading frame from the point of insertion onward, leading to incorrect amino acids being incorporated into the polypeptide chain.

A Mutation Causes a G to Be Inserted After the First