White is the color of purity, Blue stand for the patriotism and loyalty of the Texan people, While Red represents the bravery of the people who had lost their blood for the state. The colors employed for the flag of Texas are immensely symbolic and also express the allegiance of the state to the nation.
Total Kjeldahl Nitrogen (TKN) is the U.S. EPA-approved parameter used to measure organic nitrogen and ammonia. The TKN content of influent municipal wastewater is typically between 35 and 60 mg/L. Organic nitrogen compounds in wastewater undergo microbial conversion to NH3 and ammonium ion NH+ 4. Ammonium ion is the first inorganic nitrogen species produced during biological wastewater treatment.
1 tk, a gene that encodes thymidine kinase, an enzyme that phosphorylates the nucleoside analog ganciclovir. 2  DNA polymerase fails to discriminate against the resulting nucleotide and inserts this nonfunctional nucleotide into freshly-replicating DNA. 3  So ganciclovir kills cells that contain the tk gene.f the replacement gene (A* in the diagram) is nonfunctional (a null allele), mating of the heterozygous transgenic mice will produce a strain of  knockout mice  homozygous for the nonfunctional gene (both copies of the gene at that locus have been knocked out).