- A Sense strand mRNA copies identical to the natural transcript
- B RNA complementary to mRNA to block translation of a specific gene
- C Foreign DNA directly injected into the nucleus of target cells
- D Restriction enzymes that physically cleave the target mRNA
Correct answer: B. RNA complementary to mRNA to block translation of a specific gene
Explanation: Antisense RNA: sequence complementary to target mRNA. Binds to mRNA, blocking translation or triggering its degradation. Used in gene silencing and therapy.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
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