Infants are born with a passive immunity that occurs when immunoglobulin antibodies cross the placenta from the maternal circulation prior to birth. Which immunoglobulin is capa…

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asked Mar 4, 2021 28.6k views

1 Answer

Dyelawn · Answer 1 · 2021-03-09T21:06:22+0000

Answer:

Immunoglobulin G (IgG)

Step-by-step explanation:

There are five classes of human antibodies:

IgG is the most abundant and the only one capable of crossing the placenta. IgG is present in all body fluids and protects against infections.