Molecules of mRNA are composed of relatively short, single strands of molecules made up of adenine, cytosine, guanine and uracil bases held together by a sugar phosphate backbone.
 
Hope This Helps, Lexi
 
        
             
        
        
        
Answer: A.
Explanation:
Proteins are the things that determine what functions will play out. They are the reason we are able to digest foods, transfer oxygen throughout the body. Proteins MAKE these functions happen. Without proteins, we wouldn't be able to do anything
 
        
             
        
        
        
Hereditary diseases and cancer are ways in which inherited factors can affect a persons health
        
             
        
        
        
What is teligram i would like to help?