抗原 こうげん抗体 こうたい反応 はんのうだったら
kōgenkōtaihannōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 抗原抗体反応

1. If/when antigen-antibody reaction; If there was an antigen-antibody reaction

Tara Conditional