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During DNA replication, a mistake occurs in which a single letter is replaced with a different one. This is called a substitution mutation and can occur in many genetic diseases, such as sickle-cell anemia. Instead of the nitrogenous bases ATG, the DNA now codes for ATA.
Part 1: Identify the sequence of complementary mRNA nucleotides for the original DNA, ATG, and the mutated DNA, ATA.
Part 2: Use the codon table above to determine if this mutation in the DNA code will cause a change in the amino acid. Explain your reasoning.
