MCQ
$DNA$ contains
- ASulfur
- ✓Phosphorus
- CBoron
- DCalcium
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| Column $- I$ | Column $- II$ |
| $(a)$ Typhoid | $(i)$ Wuchereria |
| $(b)$ Pneumonia | $(ii)$ Plasmodium |
| $(c)$ Filariasis | $(iii)$ Salmonella |
| $(d)$ Malaria | $(iv)$ Haemophilus |
$(a)\quad(b)\quad(c)\quad(d)$
Reason : Injecting the microbes intentionally during immunisation or infectious organisms gaining access into body during natural infection induces active immunity.