Question

When the ribosome reaches a stop codon on the mRNA, no corresponding tRNA enters the A site. If the
translation reaction were to be experimentally stopped at this point, which of the following would you be able
to isolate?
A) an assembled ribosome with a polypeptide attached to the tRNA in the P site
B) separated ribosomal subunits, a polypeptide, and free tRNA
C) an assembled ribosome with a separated polypeptide
D) separated ribosomal subunits with a polypeptide attached to the tRNA
E) a cell with fewer ribosomes

Answer 1

Answer:

A

Explanation:

there is no tRNA for stop codon but there is tRNA for the previous codon which is present in the P site of ribosome.