Question

if a gene is responsible for producing a protein that helps break down starch, what most likely will happen if the genes sequence changes?
the starch will be broken down more efficiently.
the protein may function differently or no longer work.
the gene will disappear from the organisms dna.
the protein will remain unaffected.

Explanation:

Genes code for proteins. A change in gene - sequence (mutation) can alter the structure and function of the protein it codes for. This can lead to the protein being folded differently or not working at all.

Answer:

The protein may fold differently or no longer work.