エキソヌクレアーゼじゃなかったです
ekisonukureāzejanakattadesu

Noun
Desu Copula

The polite, past negative form of エキソヌクレアーゼ

1. Was not exonuclease.; Wasn't exonuclease.

Past/Perfective
Negative
Polite
Casual Register