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Q1. Between March 2 and April10, five chronic peritoneal dialysis patients at one hospital became infected with Pseudomonas aeruginosa. Four patients developed peritonitis (inflammation of the abdominal cavity), and one developed the skin infection at the catheter insertion site. All patients with peritonitis had low- grade fever, cloudy peritoneal fluid, and abdominal pain. All patients had permanent indwelling peritoneal catheters that the nurse wiped with gauze that had been soaked with an iodophor solution each time the catheter was connected to or disconnected from the machine tubing. Aliquots of iodophor were transferred from stock bottles to small in- use bottles. Cultures from dialysate concentrate and the internal areas of the dialysis machines were negative; iodophor from a small in- use plastic container yielded a pure culture of P. aeruginosa. What improper method led to this infection?
Q2. In comparing the genomes of humans and those of our higher primates, it is seen that humans have a large metacentric pair we call chromosome among our 46 chromosomes, while the other primates of this group have 48 chromosomes and any pair like the human pair is not present; in its place the primate groups each have two pairs of midsize acrocentric chromosomes. What is the most possible explanation?
How can altering ice nucleation protein production yield a bacterial strain useful to agriculture? Explain the logic and how this works.
To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.
The Xerox machine becomes obsolete after five years. Compute the net present value for both scenarios and the profitability index for the buying scenario. What is the advice to the young entrepreneur? Suppose that funds have to be borrowed at an inte..
If amino acid sequences might be useful in determining how closely related dissimilar species are but may not be very useful for identifying a particular species, suggest two reasons why.
Explain why there are no male offspring with the allele combinations
Describe how the genetic material is organized in this virus. Monarch butterfly populations are found east and west of the Rocky Mountains. How could DNA fingerprinting technology be used to start that they constitute one breeding population or two s..
If a maize plant is heterozygous for the alleles for pigmy and crinkly-leaf (both recessive to normal size of plant (S) and normal leaf (L) is self pollinated and 208 seeds are subsequently collected and germinated, how various would you expect to sh..
Most of us can't even imagine a world without oxygen. Though, as you learned earlier, chemically oxygen is a powerful oxidizing compound. What effect(s) would the increase in oxygen levels of atmosphere have on the organisms that existed at that time..
Results of this analysis show that one of the most rapidly reassociating classes of DNA is substantially reduced in the older individual with respect to the 2 year-old. How can you describe this finding.
What factors establish the choice of a paper strip containing bacterial endospores or a sealed ampule containing an endospore suspension for testing heat-sterilization equipment.
Why is the gene coding for ribosomal RNA (rRNA) used for establish phylogenetic relationships and how does this compare to previous methods for placing organisms in appropriate taxa.
Complete the table by writing down the genotype of the parents or parents involved in each cross. Utilize the letter P for purple and p for white. What are the genotypes of the parent plants.
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