Answer:
the composition of a population gene can change over time through evolution 
Explanation:
 Nature selects
 
        
             
        
        
        
Answer:
What is the name of this website 
or the book? 
 
        
             
        
        
        
<span>In DNA and RNA, the phosphodiester bond is the linkage between the 3' carbon atom of one sugar molecule and the 5' carbon atom of another, deoxyribose in DNA and ribose in RNA. Strong covalent bondsform between the phosphate group and two 5-carbon ring carbohydrates (pentoses) over two ester bonds.</span>