Multiple choice

Which of the following human IgG subclass has maximum serum concentration?

  1. IgG1

  2. IgG2

  3. IgG3

  4. IgG4
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A Correct answer
Explanation

Four subclasses of IgG and their distribution are as follows:

  1. IgG1-65% (Max)
  2. IgG2-23%
  3. IgI3-8%
  4. IgG4-4%(Min)

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