The answer is true. They cannot only replicate themselves within cells, but they cannot outside of a cell.
        
                    
             
        
        
        
One way is to share your problems with a friend or parent and tell them how you are feeling. Get plenty of sleep as well and eat healthy, avoid any alcohol and drugs. Hope this helped.
        
                    
             
        
        
        
That is because gene expression is a process in the synthesis of proteins and without proteins our organisms could not function properly. Almost all things that occur in our body are results of proteins being synthesized and these proteins travel through our body activating other processes. When not synthesizing proteins, different types of RNA are synthesized.
        
             
        
        
        
Answer:
DNA is made of chains of four smaller molecules called "Nucleotides".
Explanation:
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine) in DNA is known as a nucleotides.