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The yellowish fluid colostrum secreted by mammary glands of mother during the initial days of lactation has abundant ant…

Q1

The yellowish fluid colostrum secreted by mammary glands of mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. This type of immunity is called as:

[Re-NEET 2020]

a

Active immunity

b

Acquired immunity

c

Autoimmunity

d

Passive immunity

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