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(D) Gel electrophoresis is a technique used to separate $DNA$ fragments based on their size.$I.$ Ethidium bromide $(EtBr)$ is used to stain $DNA$ frag

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$I, II, III$ and $IV$

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(D) Gel electrophoresis is a technique used to separate $DNA$ fragments based on their size.$I.$ Ethidium bromide $(EtBr)$ is used to stain $DNA$ fragments so they can be visualized under $UV$ light.$II.$ Restriction endonucleases are used to cut $DNA$ into fragments before electrophoresis.$III.$ Agarose is a natural polymer extracted from seaweeds that forms the gel matrix used for separation.$IV.$ $UV$ radiation is used to visualize the $DNA$ bands stained with ethidium bromide.Since all these components are essential parts of the process of gel electrophoresis and $DNA$ visualization,the correct option is $I, II, III$ and $IV$.

Which of the following components are used in gel electrophoresis?
$I.$ Ethidium bromide
$II.$ Restriction endonuclease
$III.$ Agarose
$IV.$ $UV$ radiation
Choose the correct option:

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Which of the following components are used in gel electrophoresis?$I.$ Ethidium bromide$II.$ Restriction endonuclease$III.$ Agarose$IV.$ $UV$ radiationChoose the correct option: