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'''Substitution''' is the replacement of one [[nucleotide]] in a [[DNA]] sequence by another nucleotide or replacement of one [[amino acid]] in a protein by another amino acid.
'''Substitution''' is the replacement of one [[nucleotide]] in a [[DNA]] sequence by another nucleotide or replacement of one [[amino acid]] in a protein by another amino acid.
== Sources ==
http://www.genome.gov/glossary.cfm?key=substitution
[[Category:Genetics]]
[[Category:Genetics]]