Biology for IGCSE & O level - Variation And Selection (Section 7 - No. 18)
What is the most likely outcome of a mutation in a gene that codes for an enzyme?
The protein will be produced at a higher rate.
The protein will have a completely different function.
The protein will no longer be able to catalyze its specific reaction or will be altered.
The mutation will have no effect on the protein.
Explanation
A mutation can alter the enzyme's active site, changing or eliminating its ability to catalyze a reaction.
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