How are antibodies passed from a mother to the foetus?

Via placenta

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Antibodies are already present in the foetus.

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Foetus doesn't need antibodies as it does not have any contact with the external world.

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Foetus receives antibodies via injections.

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Solution

The correct option is A
Via placenta

The foetus obtains not only nutrition but also gets protection via the placenta in form of the immunoglobulins that are passed from the mother to the foetus. These immunoglobulins form a part of the foetus's innate immune system.

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