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11. You are searching for a gene that traces its ancestry to an ancient gene in fish. Evolutionarily older fish, like the coelacanth, have only one copy of this gene. More modern fish, like a three-spine stickleback, have three. Modern humans and mammals have no homologous sequence.

A. Name the gel-based assay that would allow you to see the number of copies of this gene each of your sample organisms has.

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