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ThinkQuest
Webcytology was created for ThinkQuest 1999.
Quizzes

DNA replication

[go to this section in the Guide]
Chapter Six: DNA, RNA, and Protein Synthesis


Question 1
 DNA replicates through a process called
   1.  dispersive replication
2.  semidisperive replication
3.  conservative replication
4.  semiconservative replication
 

Question 2
 The scientists who determined which of the choices in the previous question is probably correct were
   1.  Schleiden and Schwann
2.  Griffith and Avery
3.  Meselson and Stahl
4.  Watson and Crick
 

Question 3
 When DNA replication occurs, the enzyme which separates the two sides of the helix is called
   1.  DNA polymerase
2.  DNA amylase
3.  DNA ligase
4.  DNA helicase
 

Question 4
 The enzyme which bonds new nitrogenous bases to those existing on the original DNA strand is called
   1.  DNA polymerase
2.  DNA amylase
3.  DNA ligase
4.  DNA helicase
 

Question 5
 Okazaki fragments are formed because
   1.  DNA polymerase can only create a new strand of DNA from the 5' end to the 3' end
2.  DNA polymerase can only create a new strand of DNA from the 3' end to the 5' end
3.  newly formed DNA tends to break apart easily into fragments
4.  DNA helicase sometimes inadvertently breaks the DNA
 

Question 6
 One important difference between DNA replication in prokaryotes and eukaryotes is that
   1.  prokaryotes do not use enzymes in the replication process
2.  there is only one replication origin in prokaryotes
3.  there are no Okazaki fragments in prokaryotes
4.  replication is conservative, not semiconservative, in prokaryotes
 


 
 

ThinkQuest Team #27819 - 27819@for.net
Team: Andrew Kallem, Josh Tauberer
Coaches: Ms. Acerra, Mr. Kwitkin