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Which of the following mutations is most likely to be lethal?

  1. Substitution of adenine for cytosine

  2. Substitution of cytosine for guanine

  3. Substitution of methylcytosine for cytosine

  4. Deletion of three nucleotides

  5. Insertion of one nucleotide 

 

in Biochemistry by

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e. Insertion of one nucleotide
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