When bacteriophages invade bacterial cells,they leave behind DNA that is recognized by the bacteria as foreign and can be eliminated in the event of another attack,reminiscent of adaptive immunity.This natural process can be adapted in the lab so that a combination of guide DNA and nucleases facilitate the cutting of DNA at a precise location in any organism. Here we are describing ________.

Question

When bacteriophages invade bacterial cells,they leave behind DNA that is recognized by the bacteria as foreign and can be eliminated in the event of another attack,reminiscent of adaptive immunity.This natural process can be adapted in the lab so that a combination of guide DNA and nucleases facilitate the cutting of DNA at a precise location in any organism.  Here we are describing ________.

Quizplus · Accepted Answer

The description given corresponds to the CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) system, which is a natural immune system in bacteria that can be adapted in the lab for precise genome editing. The guide RNA (gRNA) acts similarly to the guide DNA mentioned in the description, and the CRISPR-associated (Cas) proteins act as the nucleases that can cut DNA at a specific location. The process is reminiscent of adaptive immunity, as the bacteria can recognize and destroy foreign DNA, leaving behind a memory of the invader.

When Bacteriophages Invade Bacterial Cells,they Leave Behind DNA That Is