Select the correct pair
Column $- I$ | Column $- II$ |
$(A)$ Physiological barrier | $(1)$ Skin |
$(B)$ Cellular barrier | $(2)$ Macrophages |
$(C)$ Physical barriers | $(3)$ interferons |
$(D)$ Cytokine barriers | $(4)$ Tears |
$(5)$ Mucus |
$a-1,5, b-2, 6-2, c-3, d-4$
$a-4, b-2, c-1,5, d-3$
$a-3, b-1,5, c-2, d-4$
$a-4, b-1, c-2,3, d-5$
Why is an antibody molecule represented as $H_2I_2$ ?
A molecule that elicits an immune response is called
$A$ : Colostrum is a very efficient means of transferring immunity to a newborn.
$R$ : IgM from mother’s milk protects the baby from the respiratory infection usually affecting in young age.
Interferon is
Assertion: Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host.
Reason: A bone marrow transplant given to a patient with genetic immunodeficiency is an example of artificially acquired passive immunity.