Colonies from selective media inoculated into triple-sugar iron (TSI) Rapid lactose fermentation on (TSI) + Lactose + Glucose Lactose Glucose + Motility Phenylalanine (PA) Indole Voges-Proskauer H,S Citrate (VP) Klebsiella Moellerella Proteus H,S Citrate Motility Providencia Morganella ONPG Erwinia VP + Enterobacter Citrobacter - VP- Citrobacter Hafnia Edwardsiella Citrate Urease Escherichia See table 20.2 for a brief discussion Yersinia Shigella LDC ONPG of each differential test. Gelatinase Kluyvera Citrobacter Serratia Salmonella
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
Identify the genera with the following characteristics from
figure:
a. Lactose (−), phenylalanine and urease (−), citrate (+), ONPG (−)
b. Lactose (+), motility (−), VP (−), indole (+)
c. Lactose (+), motility (+), indole (−), H2S (+)
d. Lactose (−), phenylalanine and urease (+), H2S (−), citrate (+)
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