Three reactions involved in the metabolism of different nucleotides are written below. Complete the reactions by moving the subs
trates and products to the appropriate places. The abbreviation HGPRT is used for the enzyme hypoxanthine-guanine phosphoribosyltransferase; PRPP is used for phosphoribosyl pyrophosphate. Not all labels will be used.T
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The third codon (three bases) in the sequence was mutated from GAT to AAT. The GAT codon translates to the amino acid aspartic acid. The AAT codon translates to the amino acid asparagine. This is what's called a point mutation, specifically a missense mutation since the translated amino acid is changed. Deletion and inversion mutations are not the answer because these mutations involve the chromosomes as a whole, not just bases. Frame shift mutations occur when 1 or 2 (but not 3) bases are added or deleted from the sequence causing an array of point mutations (domino effect).
