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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