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Chapter 8: The Cell Cycle

Practice Test
  1.Once mitosis is complete, what must occur before cell division is complete?  
  a.   DNA replication  
  b.   passing the restriction point  
  c.   nuclear division  
  d.   cytokinesis  
  2.Which of these is the stage in the cell cycle during which the cell prepares to divide?  
  a.   G1  
  b.   M  
  c.   G2  
  d.   S  
  3.In an eukaryotic cell, what controls the stages of the cell cycle?  
  a.   proteins called cyclins  
  b.   DNA polymerase  
  c.   proteins called histones  
  d.   kinases  
  4.What is the enzyme that catalyzes the formation of the new DNA strands?  
  a.   histone  
  b.   cyclin  
  c.   kinase  
  d.   DNA polymerase  
  5.Which of these cells in the human body, when mature, do not normally divide?  
  a.   stem cells  
  b.   liver cells  
  c.   skin cells  
  d.   nerve cells  
  6.What is the result of the synthesis of DNA?  
  a.   two double-stranded DNA molecules  
  b.   two double-stranded RNA molecules  
  c.   one strand of DNA and its complementary RNA strand  
  d.   four single-stranded DNA molecules  
  7.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.   replication origins  
  b.   chromatin  
  c.   a nucleosome  
  d.   a replisome  
  8.What is the period in the cell cycle between cell divisions?  
  a.   interphase  
  b.   telophase  
  c.   anaphase  
  d.   metaphase  
  9.DNA synthesis occurs continuously on only one of the original DNA strands. What is this strand called?  
  a.   the histone strand  
  b.   the lagging strand  
  c.   the leading strand  
  d.   the discontinuous strand  
  10.What are the stages of the cell cycle in which the cell grows and synthesizes RNA, proteins, and other macromolecules?  
  a.   G1 and M  
  b.   G2 and S  
  c.   G1 and G2  
  d.   S and GO  

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