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Campbell Biology Chapter 16-17

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:

A) an assembled ribosome with a polypeptide attached to the tRNA in the P site

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Last update by mayur on 03/27/2014
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Campbell Biology Chapter 16 17
Campbell Biology Chapter 16-17
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Free Flashcard From Campbell Biology Chapter 16-17
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: A) an assembled ribosome with a polypeptide attached to the tRNA in the P site