Question

PLEASE HELP! How would the following insertion mutation of an adenine in the 3rd codon affect the amino acid chain produced in the following sequence… (2pts)
Original mRNA strand- AUG GCU UGG CCC UAA
Mutated mRNA strand- AUG GCU UAG GCC CUA A
a) The ribosome would not be able to translate the mRNA with this mutation
b) The ribosome would make proline instead of alanine
c) The ribosome would receive a stop codon at an earlier spot, so the correct protein would not be made

Answer 1

c) The ribosome would receive a stop codon at an earlier spot, so the correct protein would not be made. 

UGG codes for tryptophan and UAG codes for stop.