The only antibodies that normally cross the placenta are
A)IgA.
B)IgD.
C)IgE.
D)IgG.
E)IgM.

Name: The only antibodies that normally cross the placenta are A)IgA. B)IgD. C)IgE. D)IgG. E)IgM.
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Question

Quizplus · Accepted Answer

The only antibodies that can cross the placenta from the mother to the fetus are IgG antibodies. This is why passive immunity to certain diseases can be conferred to the baby through the placenta if the mother has antibodies to the disease. IgA, IgD, IgE, and IgM cannot cross the placenta.

The Only Antibodies That Normally Cross the Placenta Are