Normally, purple people-eaters are purple. Researchers isolated a mutant that is pink and bred a large population of pink people-eaters for sale to the public as exotic (and dangerous) pets. Geneticists showed that pink is recessive. After many generations, a purple mutant appeared within the pure-breeding pink population. The enzyme that is supposed to convert pink pigment to purple was isolated from members of the original purple population (enzyme 1), from members of the pure-breeding pink population (enzyme 2), and from the new purple mutant (enzyme 3). The amino acid sequence of a portion of each enzyme is shown below:Enzyme 1: ...Leu-Pro-Val-Ala-Pro...Enzyme 2: ...Leu-Leu (truncated)Enzyme 3: ...Leu-Leu-Leu-Ala-ProWhich of the following mechanisms would best account for the production of the normal phenotype in the purple mutant that appeared among the pink population?Reverse mutation to wild-typeGen

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