たい細胞 さいぼう ちょう変異 へんいじゃなかったです
taisaibōchōhen'ijanakattadesu

Noun
Desu Copula

The polite, past negative form of 体細胞超変異

1. Was not somatic hypermutation.

Past/Perfective
Negative
Polite
Casual Register