1. (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism; [syn: mutation, genetic mutation, chromosomal mutation]
WordNet (r) 3.0 (2006):
chromosomal mutation
n 1: (genetics) any event that changes genetic structure; any
alteration in the inherited nucleic acid sequence of the
genotype of an organism [syn: mutation, genetic
mutation, chromosomal mutation]