Question

How are DNA mutations related to changes in proteins and traits?

Answer 1

By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.

Step-by-step explanation:

Answer 2

Mutations in the gene result in an alteration of the protein so that epithelial cells are defective in transporting these ions out of cells. Because less salt is secreted from the cells lining these airways and ducts, there is less water "drawn out" of the cells.

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