What is meant by a "reversion mutation"?

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A point mutation does not actually alter the amino acid sequence because it is a mutation in one of the third positions of a codon. The redundancy of the genetic code ensures the mutation is not seen.

Following a frameshift mutation, a DNA proofreading mechanism recognizes the damage and repairs it.

Following a frameshift mutation, a second mutation at a different site restores the correct reading frame.

A point mutation inserts a stop codon prematurely, creating a truncated (or absent) protein.

 

asked May 15, 2013 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

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Following a frameshift mutation, a second mutation at a different site restores the correct reading frame.

 

answered May 15, 2013 by GeneX ~Top Expert~ (7,947 points)

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