Answer: RNA complementary to mRNA to block translation of a specific gene.
- 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.
Recombinant DNA technology: a gene of interest and plasmid are cut by the same restriction enzyme, ligated into a recombinant plasmid, and introduced into a host cell.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
Read the full Biotechnology: Principles and Processes notes →