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Question

Passive immunity is 


A
inherited from the parent
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B
acquired through the first exposure to the disease 
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C
achieved directly through readymade antibodies
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D
achieved through vaccination
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Solution

The correct option is C achieved directly through readymade antibodies
Passive immunity can occur naturally, when maternal antibodies are transferred to the foetus through the placenta, and can also be induced artificially, when high levels of human (or horse) antibodies specific for a pathogen or toxin are transferred to non-immune individuals.
Innate immunity is the one that is inherted or based on genetic predisposition. 
Acquired or adaptive immunity is the body's third line of defense. Active immunity results from an infection or an immunization. 

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