MCQ
HIV causes reduction of:
- AT-helper cells only
- BAll T-cells
- CB-cells only
- DBoth B and T-cells
Explanation:
The T helper cells are a type of T-cells that play an important role in the immune system, particularly in the adaptive immune system. They help the activity of other immune cells by releasing T cell cytokines.
When the HIV infects the man it enters into the T-helper cells for replication and they utilize metabolic mechanism from T- helper cells. By the viral replication, T-helper cells get damaged and their number is gradually reduced.
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| Column-I | Column-II |
| $(A)$ Barrier | $(1)$ Copper$-T$ |
| $(B)$ $IUD$ | $(2)$ Vasectomy and tubectomy |
| $(C)$ Surgical technique | $(3)$ Condoms cervical Caps |
| $(D)$ Adminisitrating hormones | $(4)$ Oral, pill and saheli |
From this equation, $\mathrm{K}$ indicates: