遺伝 いでん 突然 とつぜん変異 へんいでしょう
idenshitotsuzenhen'ideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 遺伝子突然変異

1. Probably a genetic mutation.

Polite
Presumptive
Conjecture
Genetics