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DNA Replication


This quiz is based on the process of DNA replication in both Prokaryotes and Eukaryotes.

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Multiple choice

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1.

A major difference between DNA replication in prokaryotes and eukaryotes is :

  DNA amylase performs the function of DNA helicase in prokaryotes

  there is only one replication origin in prokaryotes.

  prokaryotes do not use Topoisomerase in the replication process

  replication is conservative in prokaryotes

  Half-n-half Clue
 

2.

The enzyme that creates a short RNA oligonucleotide at initiation sites where replication is to be carried out is called :

  Primase

  DNA Ligase

  DNA Gyrase

  Exonuclease

  Half-n-half Clue
 

3.

An enzyme (used by all retroviruses) that transcribes genetic information of the virus from RNA into DNA, is :

  Reverse transcriptase

  RNA polymerase

  Restriction nuclease

  Methylase

  Half-n-half Clue
 

4.

The enzyme that accomplishes the unwinding of the original double stranded DNA molecule, once supercoiling has been eliminated, by breaking the hydrogen bonds that hold the two strands together is :

  DNA Polymerase II

  Helicase

  Topoisomerase

  Primase

  Half-n-half Clue
 

5.

The end of a DNA strand that has a phosphate group attached to the number 5 carbon of its terminal deoxyribonucleotide is called :

  The 5 prime end (5')

  The 3 prime end (3')

  N-Terminus

  C-Terminus

  Half-n-half Clue
 

6.

An enzyme that recognizes and cuts DNA only at a particular sequence of nucleotides is often called :

  Restriction endonuclease

  RNA polymerase

  Photolyase

  DNA glycosylase

  Half-n-half Clue
 

7.

Which of the following agents is not a mutagen ?

  Ultraviolet radiation

  A retrovirus

  A transposon or jumping gene

  None of the above

  Half-n-half Clue
 


 
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