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X-Gal
Thermo Scientific X-Gal (5-bromo-4-chloro-3-indoyl-ß-D-galactopyranoside) is a chromogenic substrate used to identify recombinant plasmids. In the presence of X-Gal and IPTG, lac+ bacterial colonies appear blue, whereas recombinant colonies appear white.
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Thermo Scientific X-Gal (5-bromo-4-chloro-3-indoyl-ß-D-galactopyranoside) is a chromogenic substrate used to identify recombinant plasmids. In the presence of X-Gal and IPTG, lac+ bacterial colonies appear blue, whereas recombinant colonies appear white.
