chromosomal mutation

Thesaurus

Noun

1.

chromosomal mutation - (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism genetic mutation, mutation genetic science, genetics - the branch of biology that studies heredity and variation in organisms alteration, change, modification - an event that occurs when something passes from one state or phase to another; "the change was intended to increase sales"; "this storm is certainly a change for the worse"; "the neighborhood had undergone few modifications since his last visit years ago" deletion - (genetics) the loss or absence of one or more nucleotides from a chromosome inversion - (genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed transposition - (genetics) a kind of mutation in which a chromosomal segment is transfered to a new position on the same or another chromosome mutagenesis - an event capable of causing a mutation gene mutation, point mutation - (genetics) a mutation due to an intramolecular reorganization of a gene reversion - (genetics) a return to a normal phenotype (usually resulting from a second mutation) saltation - (genetics) a mutation that drastically changes the phenotype of an organism or species