Science test 12 Crossword
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
 
 
Down: 1) swift3) The type of chromosome containing genes for traits not related to sex Across: 2) a single set of chromosomes4) chromosomes that determine the development of sexual characteristics5) chromosome with the same length in genes but possibly different alleles.6) sex cells such as sperm and eggs
 

 

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