No genes make up chromosomes. Chromosomes contain DNA sequences and specific sequences aka genes make specific traits.
 
        
                    
             
        
        
        
Plants and animals are multicellular (which means many) and Unicellular means only one cell. Please mark as brainliest answer if it helped
        
                    
             
        
        
        
Answer:
I think Experimentation :)
Explanation:
apologies if its incorrect.