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Chapter 8: The Cell Cycle

Practice Test
      
  1.What is any change in the sequence of a cell's DNA?  
  a.   a mutation  
  b.   a nuclear division  
  c.   a replication  
  d.   a restriction  
  Hint    
      
  2.What is the narrow point near the center of the chromosome by which sister chromatids are attached?  
  a.   metaphase plate  
  b.   spindle  
  c.   centromere  
  d.   kinetochore  
  Hint    
      
  3.What is a DNA-protein complex that allows DNA molecules to fit into a cell's nucleus?  
  a.   replisome  
  b.   leading strand  
  c.   nucleosome  
  d.   cytokinesis  
  Hint    
      
  4.What is the result of the synthesis of DNA?  
  a.   four single-stranded DNA molecules  
  b.   one strand of DNA and its complementary RNA strand  
  c.   two double-stranded DNA molecules  
  d.   two double-stranded RNA molecules  
  Hint    
      
  5.DNA synthesis requires DNA polymerase, an RNA synthesizine enzyme, and an enzyme that unwinds the double helix. What is the combination of these proteins and DNA called?  
  a.   chromatin  
  b.   replication origins  
  c.   a replisome  
  d.   a nucleosome  
  Hint    
      
  6.What is the enzyme that catalyzes the formation of the new DNA strands?  
  a.   kinase  
  b.   cyclin  
  c.   DNA polymerase  
  d.   histone  
  Hint    
      
  7.Which of these cells in the human body, when mature, do not normally divide?  
  a.   skin cells  
  b.   stem cells  
  c.   liver cells  
  d.   nerve cells  
  Hint    
      
  8.What is the period in the cell cycle between cell divisions?  
  a.   metaphase  
  b.   interphase  
  c.   anaphase  
  d.   telophase  
  Hint    
      
  9.What are the two copies of each chromosome made during the S stage of the cell cycle?  
  a.   centrioles  
  b.   sister chromatids  
  c.   nucleosomes  
  d.   sister replisomes  
  Hint    
      
  10.Which is the correct order of the stages of mitosis, beginning with interphase of the cell cycle?  
  a.   metaphase, anaphase, telophase, prophase  
  b.   prophase, metaphase, anaphase, telophase  
  c.   anaphase, telophase, prophase, metaphase  
  d.   telophase, prophase, metaphase, telophase  
  Hint    

 
   
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