Answer: "Decreasing the salt concentration of the solution lowers DNA's melting point (Tm)" is not a true statement 
Explanation:
Increasing salt concentration would lower the DNA's melting point (Tm), not otherwise. 
For instance:
- In 8M urea (8M means 8 Moles per dm3), Tm is decreased by nearly 20°C. 
- 95% formamide at room temperature would completely denature the double stranded DNA.
Thus, higher concentration of salts like urea or formamide lowers Tm, not otherwise 
 
        
             
        
        
        
Answer:
What is this off of, can you give me more information so I can help you
Explanation:
 
        
             
        
        
        
Answer:
Two
Explanation:
Because there is two cells in each thing 
 
        
                    
             
        
        
        
These include the chemical. cellular. tissue organ. organ system and the organism level