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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 repeating DNA sequence at the end of chromosomes that prevents them from losing base pair sequences at their ends and from fusing together is called :

  A Telomere

  A Telomerase

  A replicon

  None of the above.

  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.

The enzyme that stitches Okazaki fragments together (along the lagging strand) is called :

  Holoenzyme

  DNA Polymerase II

  DNA Ligase

  Topoisomerase

  Half-n-half Clue
 

4.

In 1940, Nobel Laureate Barbara McClintock discovered sequences of DNA that can move around to different positions within the genome of a single cell and cause mutations. These sequences (first observed in maize) are called :

  Transposons

  inverted repeats

  direct repeats

  sticky ends

  Half-n-half Clue
 

5.

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
 

6.

The enzyme responsible for initiating the unwinding of double-stranded DNA (eliminating supercoiling) by nicking a single strand of the DNA molecule is :

  Ligase

  Topoisomerase

  Helicase

  Gyrase

  Half-n-half Clue
 

7.

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 :

  Topoisomerase

  Primase

  DNA Polymerase II

  Helicase

  Half-n-half Clue
 


 
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