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Vancomycinis an antibiotic that has become critical for controlling penicillin-resistant bacteria. This large glycopeptide (molecularwt. = 1449) binds to cellwall precursors and interferes with peptidoglycansynthesis.The polymyxinsare a group of antibiotics that are particularly effective as atopical antibiotic against skin infections. These largepolypeptides (molecular wt. = 1202) can disrupt some bacterialmembranesby binding preferentially tolipid Amolecules. In the experiments below, different prokaryoticcells were grown in broth cultures in the presence orabsence of anantibiotic (either vancomycin or polymixin). After 1 hour, cellswere rinsed, and the percent of bacteria that survived wasdetermined.Graph Awas... Bacillus E.Coli Methanoge n(archaea)With Antibiotic----- 80%CellSurvival 20%CellSurvive 90%Cell SurviveWithout Antibiotic--- 100% CellSurvive 100%CellSurvive 100%Cell SurviveGraph B was... Bacillus E.Coli Methanoge n(archaea)With Antibiotic----- 30% CellSurvival 80%CellSurvive 100%Cell SurviveWithout Antibiotic--- 100% CellSurvive 100%CellSurvive 100%Cell SurviveQUESTION IS:Using the dataabove, predict which experiment (A or B) was done using vancomycin andwhich experiment was doneusing polymyxin, and explain yourrationale.NOTE: Bacillushas a Gram (+) type envelope; E.coli has a Gram (-) type envelopeandMethanobacteriumisan Archaea. (Hint: think about cell envelopestructure).
Discuss the limitations upon cell size imparted by unfavorable changes in the surface area to volume (SA/V) ratioas cells have become larger in evolutionary time. How does the presence of a compartmentalized cytoplasm reduce
which phylum (named group at the end of a branch) is the most ancient or basal of all animals?
Explain about health information systems and describe clinical information systems, management, strategic decision support, and e-health applications.
What everyday tasks do you think would become more challenging if Homo sapiens were full- time quadrupeds in the place of full-time bipeds? Explain the answers in details.
A woman who is colour blind and has bractyldactly marries aman who is not colourblind and does not have bractyldactly. If thecharacteristic bractyldactly is dominant to the recessive conditionand you know thta the woman's mother did not have thisc..
Dentinogenesis imperfecta is a rare, autosomal, dominantly inherited disease of the teeth which occurs about one in eight thousand.
After examining the hydrogen bonding diagrams of the twocommon base pairs of DNA it becomes apparent that approaching eachbase pair in the major and minor grooves is an interaction withtheir sides. Describe what type of chemical signature would be..
You measured the purified protein concentration, which is 5 ug/uL. You decided to load 20 ug protein to the gel. How would you dilute your sample?
Assume you wish to increase fruit diameter in tomatoes, and you want to estimate heritability for this trait. You measured the diameter of tomatoes in two inbred lines.
A patient has a dead space of 150 mL, functional residual capacity of 3 L, tidal volume of 650 mL, expiratory reserve volume of 1.5 L, total lung capacity of 8 L, and respiratory rate of 15 breaths/min. What is the residual volume?
What are plasmids? What is the importance of plasmids for the recombinant DNA technology?
For each mutant protein, determine the specific ribonucleotide change that led to its synthesis. The wild-type RNA consists of nine triplets. What is the role of the ninth triplet? For the first eight wild-type triplets, which, if any, can you deter..
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