Answer:
In RNA cytosine binds to Guanine 
Explanation:
I hope this will help you :)
 
        
                    
             
        
        
        
It is like a animal migrating because it is like hibernating because it doesn't get any food or water in winter.
        
                    
             
        
        
        
Explanation:
In simple diffusion, small molecules without charges such as oxygen and carbon dioxide flow through a plasma membrane without assistance and without expending energy. Other substances such as proteins, glucose and charged particles called ions cannot pass through the selectively permeable membrane
 
        
             
        
        
        
<span>Gene expression is the process which the cell response to change. Since the Prokaryotic transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level is the two reasons.</span>