遺伝 いでん てき浮動 ふどうじゃなかったです
idente ki fudōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 遺伝的浮動

1. Genetic drift wasn't.; It wasn't genetic drift.

Past/Perfective
Negative
Polite
Casual Register
Genetics