MCQ
Sulfur dioxide is a ____________.
- ✓colourless, poisonous gas with a pungent smell
- Bcolourless, poisonous gas with a sweet smell
- Ccolourless, odourless and poisonous gas
- Dcolourless, non-poisonous gas with a pungent smell
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| CI: | 0 - 6 | 6 - 12 | 12 - 18 |
| $f_i$: | 2 | 4 | 6 |
$\ce{{x}H2O2_{(aq)} + ClO^-_{4(aq)} -> 2O2_{(g)} + ClO^-_{2(aq)} + {y}H2O_{(l)}}$
Repressible regulation of gene is seen when the end product of a biosyntbetic pathway like amino acid, is provided in the medium. At this time, internal biosynthesis of amino acid stops. It is negative control so the metabolite (amino acid) turns off a set of genes involved in producing that metabolite.