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1) Describe the appearance of the strict pathogens, Salmonella and Shigella, in triple sugar iron. How can these pathogens be differentiated biochemically from other members of Enterobacteriaceae? How do their colonies present on MacConkey, Hektoen Enteric (HE), and Salmonella Shigella (SS) agars?
2) How are O, H, K, and VI antigens used to serotype Enterobacteriaceae? What is the significance of the heat-labile quality of the K antigen? How can the presence of the K antigen confer virulence? What is the significance of the Vi antigen?
3) Option 3: Research how drinking water is tested for the presence of enteric gram-negative rods. What organisms are considered indicators of fecal contamination? What levels of organisms present are considered acceptable?
Parents of genotypes AABBCC and aabbcc (all loci are linked) are crossed to produce F1. An F1 individual is test crossed to produce the following F2 phenotypes:
Just a quick answer. What is the biosphere in a bay or water inlet that is contaminated by waste or trash? Name 2 biotic and abiotic environmental components involved in this issue and how their interaction affects the diversity of organisms in th..
How do the components of the lymphatic system protect the body from disease?
Can a man and a woman with attached earlobes have a child with free earlobes? Explain with the help of punnet square
discuss the mechanisms that Pseudomonas aeruginosa, Staphylococcus aureus, Propionibacterium acnes and Streptococcus pyogenes utilize to cause disease
Caffeine and alcohol both block the secretion of ADH from the posterior pituitary gland. Describe what this does to fluid balance.
A biochemist isolates a peptide hormone with the given sequence, Indicte the residues that could contribute a positive charge.
Explain what processes of change either have or will help you go from stage to stage
What triggers your body to take a breath? Surprisingly, blood oxygen levels are not the most influential factor. Explain what part of the brain stimulates breathing and what aspects of body chemistry are important in controlling the rate and depth..
What are the elements that comprise a best practice for health interventions and/or promotion for type 2 diabetes?
Write a 500-750 word essay about globalwarming that addresses the following points: 1. What is global warming? 2. Describe how human activities impact globalwarming
Discuss the difference between an antiseptic and a disinfectant and determine what are chemotherapeutic agents?
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