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DNA Replication


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

Formats Info Page Worksheet / Test Paper Quiz Review
Multiple choice

Your Performance  

1.

A mamalian cell typically has 1.2 meters (when completely outstretched) of double stranded DNA.The total time to duplicate the DNA is 5 hours. How many origins of replication are there if the rate of duplication is 16µmeters/min ?

  250

  15000

  1

  500

  Half-n-half Clue
 

2.

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

  prokaryotes do not use Topoisomerase in the replication process

  there is only one replication origin in prokaryotes.

  replication is conservative in prokaryotes

  DNA amylase performs the function of DNA helicase in prokaryotes

  Half-n-half Clue
 

3.

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
 

4.

The enzyme that replaces the nucleotides of the RNA primer with the appropriate DNA nucleotides is :

  DNA Polymerase II

  RNA Polymerase

  DNA Ligase

  DNA Gyrase

  Half-n-half Clue
 

5.

In DNA, mutations at G-C sequences occur quite frequently since 5-methyl cytosine easily deaminates to form :

  Thymine

  Adenine

  Guanine

  Cytosine

  Half-n-half Clue
 

6.

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
 

7.

The enzyme X removes RNA primers attached by Primase and this gap is then filled in by DNA Polymerase I. The enzyme X is :

  RNase H

  DNA amylase

  DNA ligase

  Reverse Transcriptase

  Half-n-half Clue
 


 
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