Final answer:
Cystic fibrosis is caused by mutations in the CFTR gene. The statement 'Cystic fibrosis is caused by a mutated CFTR gene' is false.
Explanation:
False. Cystic fibrosis is caused by mutations in the CFTR gene. This gene provides instructions for making a protein that plays a role in regulating the movement of salt and water in and out of cells. When this gene is mutated, it results in the production of a faulty CFTR protein, leading to the development of cystic fibrosis.
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