MCQ
The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is:
- AVitamin $C.$
- BVitamin $D.$
- ✓Vitamin ${B}_{12}$.
- DVitamin $E.$
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$R$ - The lower the $BOD$ of water, lower is its polluting potentials.
$R$ : These short extensions can form phosphodiester bonds with their complementary counterparts.