Answer:
(b) The yellowish fluid colostrum is
secreted by mother during the initial days of lactation has abundant antibodies
(IgA) to protect the infant from several diseases.
IgG immunoglobulin (antibody) is most
abundant (appro .80%) antibody in human and found in serum IgA is second
abundant (approx .10-15%) antibody. It is found in saliva and tear also. IgD
and IgE constitute 2-3% of total antibodies which are found in most cells and
serum.
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