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प्रश्न
Why is DNA unable to pass easily through cell membranes without specialized treatment?
विकल्प
DNA is lipid-soluble
DNA is hydrophilic
DNA is hydrophobic
DNA is non-polar
MCQ
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उत्तर
Because DNA is a hydrophilic molecule, it cannot pass easily through the lipid bilayer of cell membranes. To facilitate the entry of foreign recombinant DNA, host cells must first be made competent.
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