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  Note:  (bb) and (AA) are located on the long red homologue  and (BB) and  (aa) are are located  on the long blue homologue. 

20. How many kinetochores are present on each centromere? 

      a) 1      b) 2       c). 3        d) 4 

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21. Describe the arrangement of the alignment of chromosomes along the "equator" in relation to the centrioles. 

a) The equator runs parallel to a line running between the two centriole organizing 
     poles. 
b) The equator runs perpendicular to a line running between the two centriole 
     organizing poles. 
c) The equator connects the two centriole organizing poles. 

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22. Number the chromosomes 1 - 6 going from left to right. Which of the following chromosomes are NOT homologous? 

                  a) 1 and 4                              c) 3 and 6 
                  b) 2 and 5                              d) 1 and 3 

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