Photosynthesis uses carbon and h20 as the reactants
        
             
        
        
        
Answer:
Deletion and glycosylation.
Explanation:
Proteins is polymers of the alpha amino acids that are directly linked together through the peptide bond. Proteins plays an important role in the metabolic pathways as most enzymes are made of protein.
The same protein can exist in two different size. This might occur due to the deletion of the particular amino acids sequence in one organism and normal in other organisms. The glycosylation of the same protein at different position in the proteins may also leads to the difference in the protein size.
Thus, the correct answer is deletion and glycosylation. 
 
        
             
        
        
        
The valence electrons of carbon are important because the valence give an element their bonding properties. If Carbon did not have as many, it would not be able to bond four times. or have many of the properties it possess.
        
             
        
        
        
<span>Protein synthesis is controlled by the nucleus</span>
        
                    
             
        
        
        
Yes, it could be.
But there are also many other things it could be the result of.