ぎゃく転写 てんしゃ酵素 こうそじゃありませんでした
gyakutenshakōsojārimasendeshita

Noun
Desu Copula

The polite, past negative form of 逆転写酵素

1. Was not reverse transcriptase.; Wasn't a reverse transcriptase.

Past/Perfective
Negative
Polite
Terminal Form