Question

Assertion: IgM is a type of immunoglobulin which cannot cross the placenta.
Reason : IgM is pentamer immunoglobulin, joined by J-chain.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

Correct answer is (a) If both assertion and reason are true and reason is the correct explanation of assertion