Which of the following amino acid side chains CANNOT form hydrogen bond? O a. Gln O b. Tyr O C. O d. Asn e. Pro Thr

Which of these amino acids is a hydrophobic amino acid? (Select all that apply, if necessary.) A. B. C. D. E. iº H₂N-CH-C CH₂ T CH₂ CH₂ NH C=NH2 NH₂ amino acid E amino acid D amino acid B amino acid C amino acid A 200 H₂N-CH-C CH₂ C=O I OO H₂N-CH-C- CH₂ CH₂ T C=O T NH₂ 0 H₂N-CH- CH₂ CH-CH3 CH3 H₂N-CH-C CH₂ I OH -0

Create an oligopeptide via dehydration synthesis using the following amino acids. O. H Tryptophan (TRP) C-C-N но сн, C-C-N. но Glycine (GLY) H H HN

In a protein, a mutation occurs and results in phenylalanine being replaced by an alanine. This would. Select one: a. Always change the primary structure of the protein, never change the tertiary structure of function. O b. Always change the primary structure of a protein, sometimes affect tertiary structure and function. c Never change the primary structure, always affect secondary and tertiary structure and function. O d. Sometimes change the primary structure of a protein, always affect the tertiary structure, and sometimes affect function.

In a portion of polypeptide shown below, which bond is described by o rotation? NH,-- -CO- A. a В. b OC.c D. d E. Both 'a' and 'e'