The serum concentration of which of the following human IgG subclass is maximum ?
Correct answer: A. IgG1
- A. IgG1
- B. IgG2
- C. IgG3
- D. IgG4
Explanation
IgG1 is the most abundant human IgG subclass, comprising roughly two-thirds of total serum IgG. IgG2, IgG3 and IgG4 occur in lower concentrations.
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