Gel electrophoresis can't be used for uncharged or neutral molecules, because the movement of the charged particles only make this happen
        
                    
             
        
        
        
Answer:
Explanation:
a sugar, a phosphate group, and a nitrogenous base.
 
        
                    
             
        
        
        
Answer:Hydroelectric power is not perfect, however, and does have some significant disadvantages: Hydropower is non-polluting, but does have environmental impacts. Hydropower facilities can affect land use, homes, and natural habitats in the dam area
Explanation:
Hydroelectric power is not perfect, however, and does have some significant disadvantages: Hydropower is non-polluting, but does have environmental impacts. Hydropower facilities can affect land use, homes, and natural habitats in the dam area
 
        
             
        
        
        
<span>polar heads outside the cell
non polar head inside the cell</span>