Answer:
— Eukaryotic gene expression occurs in both the nucleus and cytoplasm.
 
— Prokaryotic gene expression occurs within the cytoplasm of a cell due to the lack of a defined nucleus
 
        
             
        
        
        
Explanation:
base on the person opinion
 
        
             
        
        
        
If mutation destroys the function of the Cas9 gene then the bacteria will not be able to target a specific bacteriophage for destruction upon infection for the second time.
<h3>What is the Cas9 gene?</h3>
- Cas9 is a 160 kilodalton protein that plays a vital role in the immunological defense of certain bacteria against DNA viruses and plasmids and is heavily utilized in genetic engineering applications.
-  Its main function is to cut DNA and thereby alter a cell's genome. 
- Although Cas9 is an endonuclease and is evolved as a mechanism of immunity against viruses, they are not considered restriction enzymes.
To learn more about the Cas9 gene,
brainly.com/question/22549100
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Its called osmosis and it only happens with water. now I'm just adding words to be able to post this. its moving down the concentration gradient.