Moderate

Cleavage of IgG molecule by Papin gives rise to:One Fc fragment and two Fab fragments_______________?

Correct answer: A. One Fc fragment and two Fab fragments

  • A. One Fc fragment and two Fab fragments
  • B. One Fc fragment and four Fab fragments
  • C. Two Fc fragments and two Fab fragments
  • D. Two Fc fragment and one Fab fragment

Explanation

Papain cleaves IgG above its hinge region, producing two antigen-binding Fab fragments and one crystallisable Fc fragment. Pepsin differs by leaving an F(ab′)2 fragment and digesting most of the Fc portion.

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