Question
What is Cas9 protein that is often mentioned in news?
(a) A molecular scissors used in targeted gene editing
(b) A biosensor used in the accurate detection of pathogens in patients
(c) A gene that makes plants pest-resistant
(d) A herbicidal substance synthesized in genetically modified crops
Answer:
A
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Explanation:
Cas9 is a protein that is often mentioned in the news in the context of gene editing. It is an enzyme derived from the CRISPR-Cas9 system, a powerful gene-editing tool. Cas9 acts as a molecular scissors that can cut DNA at specific locations within the genome. This ability to precisely edit genes has revolutionized the field of genetic engineering and has enormous potential for various applications, including biomedical research, agriculture, and potential therapeutic interventions.