If both of them were travelling anti parallel to each other. (parallel but in opposite directions)
        
             
        
        
        
Answer:
Organelle 1
Explanation:
Organelle 1 is the nucleus which stores genetic material such as the xx or xy chromosomes which contain the information for what gender a person is.
 
        
                    
             
        
        
        
Hydrocarbons is the simplest organic compound mad by hydrogen and carbon
        
                    
             
        
        
        
99% Sure its A. Transpiration
        
                    
             
        
        
        
1. allele
2. recessive 
3. gene 
4. genotype
5. phenotype?
6. dominant