What substrate forms a colored product in the presence of $\beta$-galactosidase?
A) p-nitrophenyl galactose
B) Coomassie-galactose
C) ethidium-galactose
D) X-gal
E) None of the answers is correct.

Question

Quizplus · Accepted Answer

X-gal is a substrate that, when cleaved by β-galactosidase, produces a blue-colored product, making it a common choice for identifying cells that express the enzyme.

What Substrate Forms a Colored Product in the Presence Of \beta