Type of immunoglobulin present in colostrum / only in mother's milk is
A
IgA
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B
IgG
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C
IgD
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D
IgE
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Solution
The correct option is A IgA IgA is an antibody that plays a crucial role in the immune function of mucous membranes. The amount of IgA produced in association with mucosal membranes is greater than all other types of antibody combined. It is found in mucous secretions, including tears, saliva, sweat, colostrum and secretions from the genitourinary tract, gastrointestinal tract, prostate and respiratory epithelium. It is also found in small amounts in the blood.