Question

Match the ribosome binding site with its function. NOTE- one is not an actual binding site.  ...

Match the ribosome binding site with its function. NOTE- one is not an actual binding site.  

(Please choose the correct answer --> Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

A. The P Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

B. The A Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

C. The E Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

D. The R Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

Please choose the correct answer, no need to add additional information. thanks

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Homework Answers

Answer #1

A. P site- Holds the tRNA attached to the growing polypeptide chain,

The P site, called the peptidyl site, binds to the tRNA holding the growing polypeptide chain of amino acids.

B. A site- Where a new tRNA, holding the next amino acid, enters

The A site (acceptor site), binds to the aminoacyl tRNA, which holds the new amino acid to be added to the polypeptide chain.

C. E site- Where tRNAs exit the ribosome

The E site (exit site), serves as a threshold, the final transitory step before a tRNA now leaves its amino acid is let go by the ribosome.

D. R site- This is not an actual site on the ribosome

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