MCQ
Mineralisation is performed by
- ASmall carnivores
- BDetrivores
- ✓Saprophytic bacteria and fungi
- DEarthworm, termites
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$A.$ Variation at genetic level arises due to mutations.
$B.$ Technique of $DNA$ fingerprinting was initially developed by Alec Jeffreys
$(i)$ Neurospora, which is used in biochemical and genetic work is a member of this class.
$(ii)$ They are mostly multicellular, e.g., Yeast, or rarely unicellular, e.g., Penicillium.
$(iii)$ They are saprophytic, decomposers, parasitic or coprophilous.
$(iv)$ Some examples are Aspergillus, Claviceps and Neurospora.
$I$. a membrane $II$. a proton pump $III$. a proton gradient
Select the correct option
| Direction of $RNA$ synthesis | Direction of reading of the template $DNA$ |
| $(a)$ $5'-3'$ | $3'-5'$ |
| $(b)$ $3'-5'$ | $5'-3'$ |
| $(c)$ $5'-3'$ | $5'-3'$ |
| $(d)$ $3'-5'$ | $3'-5'$ |