A single base pair that is inserted, removed, or modified in a genome is known as a point mutation. The majority of point mutations are harmless.
One of three outcomes from a point mutation on a protein is possible: (1) an alteration to a different amino acid known as an amisense mutation a mutation known as a nonsense mutation that affects a termination codon.
A point mutation will frequently result in the same amino acid being included in the resultant polypeptide despite the sequence change because of the degeneracy of the genetic code. Silent mutations are those changes that don't affect the structure of the protein.
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