chromosomal mutation vs mutagenesis

chromosomal mutation and mutagenesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
chromosomal mutation	Yes	No	No	No
mutagenesis	Yes	No	No	No

chromosomal mutation (noun)	mutagenesis (noun)
(genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism	an event capable of causing a mutation