- A A type of organism that is itself the target of genetic modification
- B Carrier of foreign DNA into a host cell (e.g., plasmid or virus)
- C A restriction enzyme that simply cleaves the target DNA strand
- D A type of antibody used specifically in diagnostic laboratory assays
Correct answer: B. Carrier of foreign DNA into a host cell (e.g., plasmid or virus)
Explanation: A vector (plasmid, bacteriophage, or viral vector) carries the foreign gene into the host cell for replication and expression.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
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