Of All IgG Subclasses,IgG3 Has the Largest Hinge Region,making It

question 23

Multiple Choice

Of all IgG subclasses,IgG3 has the largest hinge region,making it:

• A) the only subclass capable of crossing the placenta.
• B) the subclass with the highest number of antigen binding sites.
• C) the most efficient subclass for activating complement.
• D) incapable of opsonization.

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