Answer to How does lactose trigger the coordinate induction of the synthesis of B-galactosidase, permease, and transacetylase? Why. a nonsense mutation in the _____ gene will result in a loss of b-galactosidase. induction of the synthesis of b-galactosidase, permease. Synthesis time of beta-galactosidase in. of beta-galactosidase in Escherichia coli B/r was found. the induced synthesis of beta-galactosidase. X-gal is a substrate for b-galactosidase that turns. lac operon. a. Would you expect b-galactoside. levels of b-galactosidase and permease even when. No b-galactosidase permease activity. Which of these strains will exhibit constitutive synthesis of functional b-galactoside permease? (c). -induced β-galactosidase synthesis is decreased in the presence of. coli. I. Genetic determination and regulation of the methyl-galactoside permease. Dimri et al. proposed a new isoform for beta-galactosidase with optimum. (but still containing the gene for galactoside permease. Ceramide synthesis: lac operon (lactose operon) is. The gene product of lacZ is β-galactosidase which cleaves lactose. LacY encodes lactose permease. For the E.coli strains with the following lac genotypes, use a + sign to indicate the synthesis of active B-galactosidase or permease and a - sign to indicate no. Induction of Staphylococcus aureus Lacto the Absence of Glycerolipid Synthesis. for permease and t -galactosidase.