How does polymerase chain reaction make DNA fingerprinting more reliable 
       
      
                
     
    
    
    
    2  answers:
            
              
Answer: 
 it allows scientists to quickly make many copies of DNA.
Explanation: 
 
                                
             
                    
              
The polymerase chain reaction makes DNA fingerprinting more reliable because it allows scientists to quickly make many copies of DNA.
                                
             
         	
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