Genetica
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 3    4                        
 5            6    7              
                         
8      9                 10        
             11              
    12                       
13                     14        
    15            16             
17                         18    
    19                       
  20             21              
  22               23   24       25      
                  26         
 27                          
                         
         28                  
 29                    30        
            31               
32                           
              33             
 34                          
              35             
 36                          
                37