TLS Online TPP Program

#Question id: 133


Tyrosine and tryptophan are less hydrophobic than phenylalanine because

#Section 2: General Biology
  1. phenylalanine has an indole group.

  2. phenylalanine has no polar group in the side chain.

  3. phenylalanine is a phenol.

  4. tyrosine and tryptophan have smaller R groups.