Question

A gene editing technology called CRISPR-Cas9 uses cellular machinery to change the cell's genetic material. How might this technology be useful in treating diseases like cancer? A. CRISPR-Cas9 could be a substitute for chemotherapy. B. CRISPR-Cas9 could remove from patients the genetic mutations that cause a specific cancer before the cancer begins. C. CRISPR-Cas9 could remove any DNA damage caused by smoking. D. CRISPR-Cas9 could act as an antioxidant in a person's cells, removing toxins that might otherwise damage DNA.

Answer 1

Ans- B ( It is a clustered regulatory interspaced short palindromic repeats which is associated with protein 9 called as cas9. cas9 enzyme uses CRISPER sequences as a guide to recognize and cleave a specific strands of damaged DNA that are complementary to the CRISPER sequence. This technology alter DNA sequence and modify gene function.It helps in treating and preventing the spread of disease.)