When is a single base substitution mutation least likely to be deleterious?

what is the general effect of a single base substitution mutation?

  • Answer:

    Point mutations that occur in non-coding sequences are most often without consequences, although there are exceptions. If the mutated base pair is in the promoter sequence of a gene, then the expression of the gene may change.

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Point mutations that occur in non-coding sequences are most often without consequences, although there are exceptions. If the mutated base pair is in the promoter sequence of a gene, then the expression of the gene may change.

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