Answer:
The nucleus is an organelle found in eukaryotic cells. 
Explanation:
 
        
             
        
        
        
it involved in the transfer of genetic material from one cell to another.
 
        
             
        
        
        
The answer should be 4. All of the above.
 
        
             
        
        
        
Answer:
No.
Explanation:
I don't think it is fair that Watson and Crick were credited with the discovery when so many other scientists were involved because all other scientists also contributed in the work and work harder for it so the credit must be given to all scientists. If the credit will not given to other scientists so it is an unfair act so my opinion is against the credit given to Watson and Crick.