non-coding
regulatory region
Which three questions should the scientists investigate in order to better understand the reason that some stickleback fish have pelvic spines and some do not?
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How does the non-coding regulatory region affect Pib1?
Are there differences between the Pitx1 gene in fish with and without pelvic spines?
How did the scientists figure out that Pitx1 is related to the development of pelvic spines in stickleback fish?
Are there differences between the non-coding regulatory region in fish with and without pelvic spines?