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प्रश्न
A host cell must be made competent, before it is able to receive an rDNA. Justify.
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उत्तर
Because DNA molecules are hydrophilic, they cannot cross cell membranes. Recombinant DNA must be injected into the cell in order for it to be integrated into the vector or host genome. Making the host cells capable of receiving the rDNA is crucial.
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