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MCQs

Total Questions : 173 | Page 18 of 18 pages
Question 171. . The α-amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ .
  1.    1.1, and 12.1
  2.    6.5, and 8.0
  3.    3.3, and 10.5
  4.    2.2, and 9.4
 Discuss Question
Answer: Option D. -> 2.2, and 9.4
Question 172. . Which amino acid when exposed to ninhydrin produces a brown color?
  1.    Asparagine
  2.    Proline
  3.    Alanine
  4.    Valine
 Discuss Question
Answer: Option A. -> Asparagine
Question 173. . Coomassie Blue stains the proteins by reacting with
  1.    arginine residues
  2.    free c-termini
  3.    peptide bonds
  4.    aromatic ring
 Discuss Question
Answer: Option A. -> arginine residues

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