CRISPR-Cas9 is a gene-editing system that
- A
Uses a complementary RNA template to direct reverse transcriptase to a specific gene, where it copies the sequence
- B
Uses a recognition sequence to direct a restriction enzyme to a specific palindrome, where it cuts the DNA
- C
Uses a guide protein to direct an RNA polymerase to a specific promoter, where it activates transcription
- Dcheck_circle
Uses a guide RNA to direct the Cas9 nuclease to a specific DNA sequence, where it makes a cut for editing
Explanation
Adapted from bacterial defenses against viruses, CRISPR enables targeted, precise editing of any sequence specified by the guide RNA.