Question

The transfer of antibodies from a pregnant mother to her fetus is a type of ______.

Options

• naturally acquired passive immunity

• artificially acquired active immunity

• artificially acquired passive immunity

• naturally acquired active immunity

Answer 1

The transfer of antibodies from a pregnant mother to her fetus is a type of naturally acquired passive immunity.

Explanation:

The transfer of antibodies from a pregnant mother to her fetus is an example of naturally acquired passive immunity. It occurs naturally, without intervention, and involves the passive transfer of ready-made antibodies (mainly IgG) through the placenta to provide temporary protection to the fetus. This immunity is passive because the fetus itself does not produce the antibodies. It is not an active immune response, nor is it artificially induced by vaccination or antibody injection.