MCQ
The central lumens are obliterated in
- ✓Xylem fibres
- BPhloem parenchym
- CXylem parenchyma
- DSieve tubes
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$I.$ sample $DNA$ is cut into fragments
$II.$ restriction endonucleases
$III.$ agarose gel
$IV.$ ethidium bromide
$V.$ UV-radiation
$VI.$ elution
Mark the correct sequence of their use