Feedback: Multiple Choice Quiz 4b

  All of the correct answers have a green check mark.
  Incorrect answers have the "red-lit" button next to your choice.
  1. The changes from Asp->Asn and Glu->Gln are both substitutions of a carboxyl for the amide group.

  2. Same "analogy idea" as in question 6; here the additions involved are hydroxyl groups.

  3. Yet another "analogy question"! The addition of an isopropyl group to Gly yields Val. Likewise, the addition of an isopropyl group to Ala yields Leu.

  4. The third choice is simply wrong (His has a five-membered ring.).

  5. Here the third choice is correct. The other choices contain disinformation.