- A Amplifying DNA through repeated thermal cycles
- B Gene editing (cutting specific DNA sequences)
- C Separating DNA fragments by size in a gel
- D Synthesizing proteins from an mRNA template
Correct answer: B. Gene editing (cutting specific DNA sequences)
Explanation: CRISPR-Cas9 uses a guide RNA to direct the Cas9 nuclease to cut a specific DNA sequence, enabling precise gene editing.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
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