Question

The antibody which can cross placental barrier is

• A. $IgA$
• B. $IgE$
• C. $IgM$
• D. $IgG$

Answer 1

Answer: (D)

$IgG$

Answer 2

$IgG$ is the only maternal immunoglobulin that can cross the placenta and provide natural passive immunity to the fetus.