DNA mutations that alter the sequence can be corrected by excision repair. Which of the following statements is true of this system?

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In eukaryotes, a mismatch repair is based on a methylation signal.

  

The system functions only during DNA replication.

  

The system detects mutations because they produce an irregularity in the DNA molecule.

  

The original nucleotides causing the mutation are directly altered and left in the DNA molecule.

 

asked Dec 27, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

The system detects mutations because they produce an irregularity in the DNA molecule.

 

answered Dec 27, 2012 by anonymous



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