Feedback for Multiple Choice Quiz 16

  1. But don't forget that the correct tRNA is selected as a complex with its complementary codon in a mRNA.

  2. Sorry, ya gotta memorize this one! At least "APE" isn't too long.

  3. Look at the diagrams of Fig. 12.10 and 12.12. This should be familiar to you.

  4. Besides knowing that chloramphenicol inhibits the peptidyl transferase reaction, you should know that rifamycin inhibits RNA chain initiation and that ampicilin inhibits bacterial cell wall synthesis.

  5. One of my favorite sneaky questions for catching students who write answers too fast.
    The math is: (50 nucleotides/sec) / (3 nucleotides/codon) = 17 amino acids/sec.

  6. The ribosome is a ribozyme (since August, 2000). Since from question 3, the peptidyl transferase reaction occurs on the large (50S) subunit, it is 23S RNA that provides the active site nucleotides.
  All of the correct answers have a green check mark.
  Incorrect answers have the "red-lit" button next to your choice.