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Which is a mechanical vector that injects recombinant DNA directly into the nucleus of a host cell?
restriction enzymes
micropipette
bacterial plasmid
viral phage
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Micropipette.
Explanation: Microinjection with a fine micropipette is a mechanical method that can directly inject recombinant DNA into a host cell's nucleus. Restriction enzymes cut DNA, plasmids are biological vectors, and phages are viral vectors (infecting bacteria).
Explanation: Microinjection with a fine micropipette is a mechanical method that can directly inject recombinant DNA into a host cell's nucleus. Restriction enzymes cut DNA, plasmids are biological vectors, and phages are viral vectors (infecting bacteria).
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