A transfer RNA (#1) attached to the amino acid lysine enters the ribosome. The lysine binds to the growing polypeptide on the other tRNA (#2) in the ribosome already.

A transfer RNA (#1) attached to the amino acid lysine enters the ribosome. The lysine binds to the growing polypeptide on the other tRNA (#2) in the ribosome already.



Where does tRNA #2 move to after this bonding of lysine to the polypeptide? 

A) A site
B) P site
C) E site
D) exit tunnel
E) directly to the cytosol


Answer: C


Which component of the complex described enters the exit tunnel through the large subunit of the ribosome? 

A) tRNA with attached lysine (#1)
B) tRNA with polypeptide (#2)
C) tRNA that no longer has attached amino acid
D) newly formed polypeptide
E) initiation and elongation factors


Answer: D


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