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Chapter 8: The Cell Cycle

Practice Test
  1.What are the two copies of each chromosome made during the S stage of the cell cycle?  
  a.   sister replisomes  
  b.   nucleosomes  
  c.   centrioles  
  d.   sister chromatids  
  2.During what stage of the cell cycle does DNA replicate?  
  a.   S  
  b.   G0  
  c.   R  
  d.   M  
  3.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  
  4.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  
  5.Eukaryotic cell division is part of a complex series of stages in the life of a cell, called ____________ .  
  a.   the cell cycle  
  b.   homeostasis  
  c.   the life cycle  
  d.   circulation  
  6.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  
  7.In DNA, the nitrogen base adenine only pairs with the nitrogen base _______ .  
  a.   uracil  
  b.   thymine  
  c.   cytosine  
  d.   guanine  
  8.What is the result of the synthesis of DNA?  
  a.   four single-stranded DNA molecules  
  b.   two double-stranded DNA molecules  
  c.   one strand of DNA and its complementary RNA strand  
  d.   two double-stranded RNA molecules  
  9.What is the point at which the cell receives signals that tell it to commit to a full round of the cell cycle?  
  a.   restriction point  
  b.   division point  
  c.   G0  
  d.   premitosis  
  10.What is the first step in the replication of DNA?  
  a.   binding of enzymes to existing DNA  
  b.   unwinding of the double helix  
  c.   synthesis of a new matching strand for each existing strand  
  d.   DNA polymerase makes a new strand to pair with undamaged strand  

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