A frameshift mutation:

A) leaves the amino acid sequence unchanged.
B) results from an insertion or deletion in a DNA sequence.
C) substitutes a pyrimidine for a purine, or vice versa.
D) substitutes a purine for a pyrimidine only.
E) is the result of an unequal crossing-over.


B) results from an insertion or deletion in a DNA sequence.

Biology & Microbiology

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Which of the following examples is best explained by the process of convergent evolution?

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Which chemical characteristic makes phosphoenolpyruvate (PEP) unusual?

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Which one of the following molecules is a monosaccharide?

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