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Chapter 8: The Cell Cycle

Practice Test
  1.In what stage of the cell cycle are most cells found in adult multicellular organisms?  
  a.   G1  
  b.   S  
  c.   G2  
  d.   G0  
  2.If checkpoint control proteins detect mistakes and damage during the cell cycle, the cell enters ________ so that repairs can be made.  
  a.   cytokinesis  
  b.   cell-cycle arrest  
  c.   interphase  
  d.   nuclear division  
  3.In an eukaryotic cell, what controls the stages of the cell cycle?  
  a.   proteins called cyclins  
  b.   kinases  
  c.   proteins called histones  
  d.   DNA polymerase  
  4.In DNA, the nitrogen base adenine only pairs with the nitrogen base _______ .  
  a.   cytosine  
  b.   uracil  
  c.   guanine  
  d.   thymine  
  5.Which of these cells in the human body, when mature, do not normally divide?  
  a.   stem cells  
  b.   skin cells  
  c.   liver cells  
  d.   nerve cells  
  6.Which of these is the stage in the cell cycle during which the cell prepares to divide?  
  a.   G1  
  b.   S  
  c.   M  
  d.   G2  
  7.Once mitosis and cytokinesis are complete, what part of the cell cycle do the daughter cells enter?  
  a.   prophase  
  b.   G1  
  c.   telophase  
  d.   G0  
  8.What is the period in the cell cycle between cell divisions?  
  a.   telophase  
  b.   interphase  
  c.   metaphase  
  d.   anaphase  
  9.During what stage of the cell cycle does DNA replicate?  
  a.   G0  
  b.   M  
  c.   S  
  d.   R  
  10.What is the enzyme that catalyzes the formation of the new DNA strands?  
  a.   kinase  
  b.   histone  
  c.   cyclin  
  d.   DNA polymerase  

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