Answer:
When directed mutagenesis which is also called reverse genetics is used, only a single mutation per genome is introduced. In contrast, the number of mutations per genome introduced by random mutagenesis is usually difficult to control. It is likely that the strain you obtained with a mutation in gene X after random mutagenesis contained an additional mutation or perhaps multiple mutations which ultimately was/were responsible for loss of virulence in your favorite pathogen.
 
        
             
        
        
        
Ghyjgj
gbhf ghbgf g h 
fgh gh fgh f
gfhgfh
 gh
 gh
 gfh
 gh
gh
 gf
h
        
                    
             
        
        
        
Longer than a larger star
        
             
        
        
        
Answer:
Cytoplasm
Explanation:
Cytoplasm is kind of like cell blood. Cell membrane is cell skin, I've legit never heard of a cell skeleton in my life and centrioles are RNA processors. 
 
        
                    
             
        
        
        
Answer:
All living organisms show movement of one kind or another. All living organisms have internal movement, which means that they have the ability of moving substances from one part of their body to another.