Q. The “CRISPR Cas – 9” is often seen in news is related to which of the following?
Explanation: CRISPR is a genetic code or sequence found in bacteria. These are formed due to the activity of the previous bacteriophages that had infected them.
- Bacteria use CRISPR sequence to remember each specific virus that attacks them. They do this by incorporating the virus’ DNA into their own bacterial genome.
- This method then gives the bacteria protection or immunity when a specific virus tries to attack again. Cas 9 are the genes that are always located nearby.