modifies Phenotype Genetic Phenomena Genetic Variation Suggest update to description Suggest update to description in NCIT http://purl.obolibrary.org/obo/NCIT_C17248 Deviation(s) in the nucleotide sequence of the genetic material of an individual from that typical of the group to which the individual belongs, or deviation(s) in the nucleotide sequence of the genetic material of offspring from that of its parents. NCIT:C17248