New answers tagged growth-media
Tryptone is hydrolysate of casein- a milk protein- and may contain residual lactose as impurity. It is one of the constituent LB media. Addition of glucose may prevent induction of the cloned gene under lac promoter (or T7 polymerase under lac promoter in case of T7 promoter vectors) by catabolic repression. Induction of protein production is not desirable. ...
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