染色 せんしょく たい突然 とつぜん変異 へんいでしょう
senshokutai totsuzenhen'ideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 染色体突然変異

1. Probably a chromosomal mutation.

Polite
Presumptive
Conjecture
Genetics
Medicine