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词汇 x-gal
释义 x-gal 英'eksɡ'æl美'eksɡ'æl BNC¹⁷³⁹⁹⁵⁺²乳糖酶底物³³; 酶切后显蓝色³³.X-Gal 5-bromo-4-chloro-3-indolyl-beta-D-galactopyranoside is an inert chromogenic substrate for beta-galactosidase; an enzyme that promotes lactose utilization³⁴.;Beta-galactosidase hydrolyzes X-Gal into a colorless galactose and 4-chloro-3-brom-indigo which forms an intense blue precipitate
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