MCQ
In the lac operon, the structural genes are switched off when
- ✓Repressor binds to operator
- BRepressor binds to promotor
- CRepressor binds to regular
- DRepressor binds to inducer
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| Column $- I$ | Column $- II$ |
| $(a)$ Allergy | $(1)$ Malaria |
| $(b)$ Widal test | $(2)\; AIDS$ |
| $(c)\; ELISA$ test | $(3)$ Typhoid fever |
| $(d)$ Haemozoin | $(4)\; IgE$ antibodies |
$(1)$ Radiography
$(2)$ $ELISA$
$(3)$ $CT-Scan$
$(4)$ $MRI$
$(5)$ $Widal$
| Microbe | Product | Application |
| $(a)$ Streptococccus | Streptokinase | Removal of clot fromblood vessel |
| $(b)$ Clostridium butylicum | Lipase | Removal of oil stains |
| $(c)$ Trichoderma polysporum | Cyclosporin $A$ | Immuno-suppressive drug |
| $(d)$ Monascus purpureus | Statins | Lowering of blood cholesterol |