The term ’active immunity' means
Which of the following is an autoimmune disorder?
In higher vertebrates, the immune system can distinguish selfcells and non-self. If this property is lost due to genetic abnormality and it attacks selfcells, then it leads to
Lymphocytes are seen in large numbers at sites of inflammation because
Match the following columns
Column $-I$ | Column $-II$ |
$(A)$ Physical barriers | $(1)$ Interferon |
$(B)$ Physiological barriers | $(2)$ Leukocytes |
$(C)$ Cellular barriers | $(3)$ Tears |
$(D)$ Cytokinin barriers | $(4)$ skin |
$A$ $B$ $C$ $D$