短語詞組短語isolation of auxotrophic mutant 營養(yǎng)突變躰分離tryptophan auxotrophic mutant 色氨酸營養(yǎng)缺陷型complementation analysis of auxotrophic mutant 營養(yǎng)突變躰的互補(bǔ)分析 返回 auxotrophic mutant