46.
Give the name and functions of four classes of antibodies.
The different types of antibodies are -:
(i) IgA - Its is present in tears and provides protection against microbes.
(ii) IgE - It is responsible for allergic reactions.
(iii) IgM - Provides initial protection against infections.
(iv) IgG - It provides protection against infection. It is the antibody that can cross placenta and provide protection to the child.
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