Author Question: Ninhydrin is used A) to determine the N-terminal amino acid of a peptide. B) to sequence amino ... (Read 150 times)

jayhills49 · **on:** Aug 23, 2018

Ninhydrin is used
A)
to determine the N-terminal amino acid of a peptide.
B)
to sequence amino acids in a peptide.
C)
to detect amino acids derived from hydrolysis of a peptide.
D)
to couple amino acids during solid-phase peptide synthesis.
E)
to hydrolyze peptides on the carboxyl side of aromatic amino acid residues.

Question 2

The mechanism by which Sanger's reagent reacts with an amine is
A)
nucleophilic aromatic substitution.
B)
electrophilic aromatic substitution.
C)
hydrolysis.
D)
nucleophilic acyl substitution.
E)
electrophilic addition.