MCQ
Recombinant $DNA$ technology is related with
- AC. Darwin
- BStanley Cohen
- CHerbert Boyer
- ✓Both $ (b) $ and $ (c)$
(d) Cohen and Boyer ($1973$) were the first to produce recombinant $DNA$ by introducing a foregin gene into plasmid of E.coli.
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$A.$ Detrivores perform fragmentation.
$B.$ The humus is further degraded by some microbes during mineralization.
$C$. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
$D$. The detritus food chain begins with living organisms.
$E$. Earthworms break down detritus into smaller particles by a process called catabolism.
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