In Bacteria,ـــــــــــــــــــthe System Destroys Incoming Viral DNA and RNA

Question

In bacteria,ـــــــــــــــــــthe system destroys incoming viral DNA and RNA.
A)RISC
B)Dicer
C)Slicer
D)CRISPR

Accepted Answer

The CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) system in bacteria functions as an adaptive immune system, in which it can recognize and destroy viral DNA/RNA that has previously infected the bacteria. The CRISPR system involves several proteins, including Cas9, that can specifically target and cut viral DNA/RNA molecules. Therefore, the CRISPR system is the best choice for the given scenario.