C. When there is an equal number of molecules on each side
        
                    
             
        
        
        
Answer:
Just one round without DNA repair
Explanation:
When an error occurs before or during replication, in a normal system, there is always proofreading and correction. If the error is not corrected during replication, it can then be corrected by the DNA damage repair system. But if not also corrected, the error becomes fixed and subsequent replication will produce this error
 
        
             
        
        
        
answer:
carbon dioxide !!
explanation:
hope this helps you !! 
if i'm wrong pls let me know lol !!