Answer:
A) diploid cells contain two sets of chromosomes
 
        
                    
             
        
        
        
DNA fragments are cut out restriction enzymes (restriction endonucleases) and then joined together using enzymes called DNA ligases.
<span>Restriction enzymes are enzymes which recognize target sequences (recognition sites) and cuts DNA at or near those sequences.</span>
DNA ligase is an enzyme that connects the gap between the molecules (if they have matching ends).
 
        
             
        
        
        
Oxygen is the answer for this question.
        
                    
             
        
        
        
Mark the difference between Meiosis and Mitosis below.
- In mitosis the daughter cells are diploids.
- In meiosis the daughter cells are haploids.
Only second generation is asked so the product is 1 diploid only.