Lymphocytes are seen in large numbers at sites of inflammation because
Their function is phagocytic
They prevents clotting of blood
Their function is to form and carry antibodies
All the above
The principle of Vaccination and Immunization is based on which property?
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 |
Write in details about Thymus.
Assertion : Interferons are effective against viruses.
Reason : Proteins which can be synthesized only by genetic engineering are effective against viruses.