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Chapter 8: The Cell Cycle

Practice Test
  1.What is the result of the synthesis of DNA?  
  a.   one strand of DNA and its complementary RNA strand  
  b.   two double-stranded DNA molecules  
  c.   two double-stranded RNA molecules  
  d.   four single-stranded DNA molecules  
  2.What are the two copies of each chromosome made during the S stage of the cell cycle?  
  a.   sister replisomes  
  b.   sister chromatids  
  c.   nucleosomes  
  d.   centrioles  
  3.Once mitosis is complete, what must occur before cell division is complete?  
  a.   nuclear division  
  b.   cytokinesis  
  c.   DNA replication  
  d.   passing the restriction point  
  4.If checkpoint control proteins detect mistakes and damage during the cell cycle, the cell enters ________ so that repairs can be made.  
  a.   interphase  
  b.   nuclear division  
  c.   cell-cycle arrest  
  d.   cytokinesis  
  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.   a replisome  
  b.   replication origins  
  c.   chromatin  
  d.   a nucleosome  
  6.What is the period in the cell cycle between cell divisions?  
  a.   interphase  
  b.   telophase  
  c.   anaphase  
  d.   metaphase  
  7.In an eukaryotic cell, what controls the stages of the cell cycle?  
  a.   DNA polymerase  
  b.   proteins called cyclins  
  c.   proteins called histones  
  d.   kinases  
  8.DNA strands are parallel but run in opposite directions. What is this arrangement known as?  
  a.   alternate structure  
  b.   antiparallel structure  
  c.   parallel structure  
  d.   opposite structure  
  9.Which of these is the stage in the cell cycle during which the cell prepares to divide?  
  a.   G1  
  b.   M  
  c.   S  
  d.   G2  
  10.What is the point at which the cell receives signals that tell it to commit to a full round of the cell cycle?  
  a.   division point  
  b.   G0  
  c.   premitosis  
  d.   restriction point  

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