- (A) IgA
- (B) IgD
- (C) IgG
- (D) IgM
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- (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
- (A) Antigen recognition by B cells
- (B) Localization protection in external secretion
- (C) Compliment activation
- (D) Reagin activity
- (A) IgG
- (B) IgA
- (C) IgM
- (D) IgD
- (A) Escherichia Coli
- (B) Staphylococci
- (C) Spirochetes
- (D) Mycoplasma
- (A) Bacteria
- (B) Viruses
- (C) Spore formers
- (D) Fungus
- (A) Bile solubility
- (B) Optochin sensitivity
- (C) Bacitracin sensitivity
- (D) Cataslase positive
- (A) Gamma-Rays
- (B) X-Rays
- (C) Autoclaving
- (D) Boiling
- (A) dna
- (B) Ribosome
- (C) Mitochondria
- (D) Cell wall
- (A) Type I hypersensitivity
- (B) Type II hypersensitivity
- (C) Type III hypersensitivity
- (D) Type IV hypersensitivity
