I. DNA being a hydrophilic molecule cannot pa | vedclass

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(C) $DNA$ is a negatively charged,hydrophilic molecule,which prevents it from passing through the hydrophobic lipid bilayer of the cell membrane.To fa

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$I$ and $II$ are true

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(C) $DNA$ is a negatively charged,hydrophilic molecule,which prevents it from passing through the hydrophobic lipid bilayer of the cell membrane.To facilitate the uptake of recombinant $DNA$ by host cells like bacteria,they must be made 'competent'.Competency is achieved through various methods,such as treatment with divalent cations (e.g.,$Ca^{2+}$) or heat shock,which increases the efficiency with which $DNA$ enters the bacterium through pores in its cell wall.Therefore,both statements $I$ and $II$ are scientifically correct.

$I.$ $DNA$ being a hydrophilic molecule cannot pass through cell membranes.
$II.$ The bacteria should be made competent to accept the $DNA$ molecule.
The correct option regarding the above statements is:

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$I.$ $DNA$ being a hydrophilic molecule cannot pass through cell membranes.$II.$ The bacteria should be made competent to accept the $DNA$ molecule.The correct option regarding the above statements is: