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Suppose you innoculate a PR broth with a slow-growing fermenter. After 48 hours, you see slight turbidity but score it as (-/-). Is this result a false positive or a false negative? Is this a result of roor specificity or poor sensitivity of the test system?
Early formulations of this medium used a smaller amount of carbohydrate and occasionally prodused false alkaline (pink) result after 48 hours. Why do you think this happened? List at least two steps, as a microbiologist, that you could take to prevent the problem.
In metabolic processes of cell respiration and photosynthesis, prosthetic groups as in heme and iron-sulfur complexes are encountered. What do they do.
Check completed table correctly. A minus indicates that component or function is not present in the group and a plus indicates that it is.
Compare and difference wave summation with recruitme nt. How are they similar? Describe how wave summation and recruitment are achieved in the body.
How does your answer make clear that why antibiotic resistance evolves so fast. What is the equilibrium frequency of the resistant allele in the absence of methicillin.
After one minute, ask your subjects to close their eyes. Once their eyes are closed, ask them to recite everything in the room that is different colour than the one they were looking for, for in case, anything and everything that is green.
Discuss how would the diffusion rates of the following substances in 2 percent agar compare: sodium ions, sucrose, a 60,000 protein, and a dinucleotide?
A women is perspiring profusely with rapid breathing, breath smells like acetone and blood sugar is 650mg/ml, blood chemistry indicates acidosis, what is her diagnosis, is it hypoglicemia, but thrown off by rapid breathing.
Increase the ratio of succinate to malonic acid reduces the inhibitory effect of malonic acid. Which is correct answer. What are the genotypes of the albino's parents.
Discuss how many molecules of histone 2A would be required in a typical human cell just after the completion of S phase, assuming an average nucleosome spacing of two hundred bp?
Explain the sites and actions of the cardioinhibitory and cardioacceleratory centers and also discuss the factors that affect heart rate and stroke volume.
How would you interpret this result? How might such a phage replicate its DNA.make sense in terms of Chargaff's rules.
Describe why gram-negative bacteria are more resistant to biocides than gram-positive bacteria. Be exact and descriptive in the response. A description of the differences between gram-negative and gram-positive bacteria must be included, along with a..
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