interchromosomal
adjective
                                                                                                                            
                                                            in·ter·chro·mo·som·al
                    
                                                                                                              
                                                                                                                                  ˌin-tər-ˌkrō-mə-ˈsō-məl 
                                                                                                                              
            -ˈzō-
                                                      
                                                          
                                
              
          
                                                      : occurring between or involving two or more chromosomes                                      
              
                             
interchromosomal genetic recombination
                         
                
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  Merriam-Webster unabridged




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