TLS Online TPP Program

#Question id: 132


Proline is distinct among the 20 commonly found amino acids because

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. it is a ring compound.

  2. it is hydrophilic and ionic.

  3. the nitrogen of the amino group is in a ring.

  4. the carbon of the carboxyl group is in a ring.