分化 ぶんか細胞 さいぼうじゃなかったです
mibunka saibōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 未分化細胞

1. Was not undifferentiated cells.; Wasn't an undifferentiated cell.

Past/Perfective
Negative
Polite
Casual Register
Biology