8. If Griffith had observed the results shown,rather than his actual results, how wouldthis change his conclusion? Also given theexperimental set-up and results shown inthe question, if you could set-up oneadditional reaction to further understandthese findings what would you set-up?What information are you hoping to gainfrom that reaction? By one additionalreaction I mean infect mice with viruseseither solo or in combination, alive or dead.Method:Results:Living$ strain(virulent)Mouse deadExtract live S strainLivingR strain(non-virulent)Mouse aliveExtract live R strainMox:Living R strainDead S strainMouse deadExtract live R strain

In the experiment illustrated, which is reminiscent of Frederick Griffith's famous experiment…

Answered: 8. If Griffith had observed the results…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Before development of a vaccine against this microbe, thedisease it caused accounted for two-thirds of bacterial meningi-tis cases during the first year of life but is still the number oneleading cause of mental retardation in patients who survive seri-ous disease due to permanent central nervous system disorders.What is the microorganism?(a) Haemophilus influenzae type B(b) Haemophilus influenzae type A(c) Neisseria meningitidis(d) Streptococcus pneumoniae(e) Listeria monocytogenes
Please answer with yes or no with correcting the falte statement. Felline to cottart the will cost the whole statements mark, 56) Prionsare small circular RNA Viruses, those viruses don't have capsid and they can't replicate in their own. They need & helper virus like hepatitis If virus to replicate 57) Car receptor can act as a receptor for multiple viruses, like adenoviruses and Herpesviruses. 58) For infiuenza viruses they enter the host cell via Clathrien-coated pits endocytosis; in which the cell receptors will be digested by the lysozyme enzymes 59) Uncosting is the removal of the outer capsid in order to release the genome to start the viral replication, In case of adenovirus the uncoalo appen.. membrane
A government official interested in determining the number of infants affected with the human immunodeficiency virus (HIV) has approached your hospital to participate in a statewide funded study. The protocol will include the testing of all newborns for HIV, but the mothers will not be told that the test is being done, nor will they be told the results? Using the basic ethical principles (available in the resources file), defend or refute the practice. How will the findings of the proposed study be affected if the protocol is carried out?
In the crusade to create a vaccine for Poliomyelitis, Jonas Salk and Albert Sabin created two separate vaccines that proved to be successful in preventing Polio onset. The Salk vaccine, which is given by standard injection, contained virus particles inactivated by an organic solvent. This method has the advantage of inactivating each of the three Polio strains with no bias, Albert Sabin's vaccine, given by oral inoculation via sugar water, contained live virus particles that had been genetically attenuated. With this method, each of the three Polio strains acquired separate mutations that made them unable to infect the human host cells. Strain 2 in particular contained one single nucleotide polymorphism in the internal ribosomal entry site (IRES) that prevented successful viral replication. The organic solvent used to inactivate the Poliovirus in the Salk vaccine significantly alters the viral capsid. For the purposes of this question, let us assume that the capsid proteins are bound…
In our pandemic world, COVID testing has become a very common thing (unfortunately necessary). When receiving a test to detect the COVID virus, a person may or may not have COVID, and the test result could come back either positive or negative. (a) Explain what specificity means in the context of a COVID test. (b) Explain what sensitivity means in the context of a COVID test.
Katelyn had been working for Dr. Johnson for a month, and while she had become quite good at measuring inhibitionzones, she didn’t know why she was doing all this work. She had gotten very curious after she began doing all themeasurements on a new set of antibiotics. # is experiment involved infecting mice with MRSA and tracking how theMRSA grew over time.Data were collected by counting the cells of MRSA taken from $ uid samples from the mice. # e cells were measuredby taking one gram of the $ uid and spreading it over plates, but now Katelyn counted the colonies that grew on theplate after 24 hours. Because there were so many, she actually measured the colonies as “log CFU/g.” A CFU is acolony forming unit, or essentially a cell that will divide into a colony that can be seen. Because there can be so many,Katelyn measured them on a logarithmic (log) scale. # e raw data in her lab notebook looked like the following:Table 1. E% ect of treatment on MRSA in mice after 24 hours of drug…
Given that viruses must be cultivated to make vaccines against viral diseases, discuss the advantages and disadvantages that might occur with each approach (embryonated egg versus cell culture) to growing animal viruses.
41. Identify the MISMATCH pair from the following, if any Group of answer choices some toxins :::: helps bacteria scavenge iron from environment endotoxin :::: are difficult to inactivate pneumolysin :::: encoded by chromosomal DNA gene superantigens :::: compromises immune system exotoxins :::: secreted by Gr + and – ve bacteria none of the above is a mismatch pair 42. dentify the FALSE statement for cholera toxin, if any Group of answer choices adenylate cyclase is activated metabolic acidosis is a consequence of toxin activity subunit A enters intestinal epithelial cell; modifies a key component of target cells none of the above is a false statements it’s encoded by a phage gene toxin subunit has ADP ribosylation activity
The following table includes information from a procedure where mice were injected with different concentration amounts of a certain microbe (Mircobe A) under these distinct circumstances: no other treatment added (NT), after being exposed to anti-microbe A vaccine (vacA), and during treatment with a broad-spectrum antibiotic (x). CFU/ml Injected % Infected - NT % Infected - vacA % Infected - x 1 2 0 1 10 20 0 22 100 52 3 44 1000 100 14 97 1. What is the ID50 value of Microbe A (in CFU/ml)? 2. Is Microbe A antibiotic-sensitive? 3. Is the vacA vaccine effective to stop the infection?
You are working in a pathology lab studying the virus Examinaria in mice. You collect the following information about two competing Examinaria strains, Aggressive and Mild: 1. Aggressive always out-competes Mild within a mouse for a payoff of 1. 2. Mild co-exists with Mild in a host for a payoff of 12. 3. Mild always loses to Aggressive for a payoff of 0. 4. Aggressive competing with Aggressive in a host leads to early death of the mouse and a payoff of only 14. Make a payoff matrix to solve this game. Based on the payoff matrix, is there one best Evolutionarily Stable Strategy (ESS) in this game? Yes, Aggressive is the ESS Yes, Mild is the ESS No, Mixed ESS
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