A Mutationis a change in a DNA sequence brought about either by a mistake made when the DNA is copied or through chemical damage or can by activity of any microbe. Regions of the genome, typically called genes, mutation effect these genes and protein, which perform most of the important jobs in cells.
The sequence of letters in a gene determines the sequence of amino acids in the protein it encodes, a point mutation can change the amino acid sequence of the resulting protein. Sometimes a change in the protein's amino acid sequence can have severe results.
Some DNA mutations are silent and have no effect, but others affect protein, essential molecules for life, that regulate whether the gene is active or not, make more or less protein or change protein synthesis altogether.
Result: Amino acid sequence get changed in DNA mutation.
