Mitosis: Interphase - One Chromosome Two Chromatids 

  Does your diagram from the previous page resemble the figures below? (ignore the blue and red colors of each chromosome) 

                                                       k 
 
 12. Which of the following statements concerning the diagram above is correct? 

a) The "before" figure has twice the number of chromosomes and the same the amount of DNA as the "after". 
b) The "after" figure has twice the number of chromosomes and twice the amount of DNA as the "before". 
c) The "after" figure has the same number of chromosomes but  twice the amount of DNA as the "before". 

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This is obviously an important concept.  In your notes draw a figure showing this event. 
 

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Created by the Center for Learning Technologies, Academic Technology Services. 
Last modified October 22, 1997.