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A Short Segment of an MRNA Molecule Is Shown Below

question 43

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A short segment of an mRNA molecule is shown below.The polypeptide it codes for is also shown: 5′-AUGGUGCUGAAG-3′: methionine-valine-leucine-lysine
Assume that a mutation in the DNA occurs so that the fourth base (counting from the 5′ end) of the messenger RNA now reads A rather than G.What sequence of amino acids will the mRNA now code for? (You do not need a copy of the genetic code to answer the question.)


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