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Chapter 8: The Cell Cycle

Practice Test
  1.If checkpoint control proteins detect mistakes and damage during the cell cycle, the cell enters ________ so that repairs can be made.  
  a.   cell-cycle arrest  
  b.   nuclear division  
  c.   interphase  
  d.   cytokinesis  
  2.Which of these cells in the human body, when mature, do not normally divide?  
  a.   liver cells  
  b.   nerve cells  
  c.   skin cells  
  d.   stem cells  
  3.What are the stages of the cell cycle in which the cell grows and synthesizes RNA, proteins, and other macromolecules?  
  a.   S and GO  
  b.   G1 and G2  
  c.   G2 and S  
  d.   G1 and M  
  4.During what stage of the cell cycle does DNA replicate?  
  a.   M  
  b.   R  
  c.   S  
  d.   G0  
  5.Which of these is the stage in the cell cycle during which the cell prepares to divide?  
  a.   G2  
  b.   G1  
  c.   S  
  d.   M  
  6.DNA synthesis occurs continuously on only one of the original DNA strands. What is this strand called?  
  a.   the leading strand  
  b.   the histone strand  
  c.   the lagging strand  
  d.   the discontinuous strand  
  7.What is another term for mitosis?  
  a.   nuclear division  
  b.   interphase  
  c.   S stage  
  d.   cytokinesis  
  8.What is any change in the sequence of a cell's DNA?  
  a.   a nuclear division  
  b.   a mutation  
  c.   a replication  
  d.   a restriction  
  9.What is the period in the cell cycle between cell divisions?  
  a.   anaphase  
  b.   metaphase  
  c.   telophase  
  d.   interphase  
  10.In DNA, the nitrogen base adenine only pairs with the nitrogen base _______ .  
  a.   thymine  
  b.   uracil  
  c.   cytosine  
  d.   guanine  

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