In what way could a point mutation in DNA make a difference in the function of a protein?

Question

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A point mutation in DNA can result in a substitution of a different amino acid in the protein chain. This change can alter the protein's shape, structure, or function, leading to functional differences. This type of mutation is known as a missense mutation. Other types of point mutations, such as nonsense mutations (where a codon is changed to a stop codon) or silent mutations (where the change does not affect the amino acid sequence), may not have significant impacts on protein function.

In What Way Could a Point Mutation in DNA Make