Are most mutations bad?

Mutational effects can be beneficial, harmful, or neutral, depending on their context or location. Most non-neutral mutations are deleterious. In general, the more base pairs that are affected by a mutation, the larger the effect of the mutation, and the larger the mutation's probability of being deleterious.

Explanation:

It depends, not all mutations are bad.

Explanation:

Some mutations don't affect anything and remain coding for the same gene so it ends up being the same even if it wasn't mutated in the first place.

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