Ninhydrin is used A) to determine the N-terminal amino acid of ...

[jayhills49]

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.

[dpost18]

Answer to Question 1

c

Answer to Question 2

a

[jayhills49]

TYSM

[shailee]

Excellent