Skin grafting involves taking a set of postage stamp

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Skin Grafting involves taking a Set of Postage Stamp-Size Skin Patches from a Donor and placing this Set of Patches on a Recipient. The first Rejection of this Set of Skin Grafts was termed a First Set Rejection. The second Rejection of a second Set of Patches from this same Donor was termed a Second Set Rejection. What was the subtle Distinction that convinced Medawar and Gibson that Graft Rejection was an Immunological Phenomenon? A. • First Set Rejection and Second Set Rejection both took only 1 to 3 days. • Medawar and Gibson realized that this Timeframe was Characteristic of a Primary Immune Response. _______________________________________________________ B. • First Set Rejection and Second Set Rejection both took approximately 5 to 10 Days. • Medawar and Gibson realized that this Timeframe was Characteristic of a Secondary Immune Response. _______________________________________________________ C. • First Set Rejection only took 1 to 3 Days. • Second Set Rejection took approximately 5 to 10 Days. • Medawar and Gibson realized that - - First Set Rejection was equivalent to a Primary Immune Response - Second Set Rejection was equivalent to a Secondary Immune Responses. _______________________________________________________ D. • First Set Rejection took approximately 5 to 10 Days. • Second Set Rejection only took 1 to 3 Days. • Medawar and Gibson realized that - - First Set Rejection was equivalent to a Primary Immune Response - Second Set Rejection was equivalent to a Secondary Immune Responses.
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MIC 101 Exam 2 Page 17 20. The 1894 Outbreak of Plague in Yunan Province of China threatened French Indochina so Alexandre Yersin went to Hong Kong (which was also suffering from an Outbreak of Plague) to take advantage of the superior Research Facilities offered by the British. How did Yersin isolate the Causative Agent of Plague? A. • Yersin bribed British Medical Authorities and was given exclusive Access to Plague Cadavers (while Kitasato got the Cold Shoulder Treatment). • Optimum Growth of Isolates was 23°C to 28°C on Blood Agar B. • Yersin bribed British Naval Guards so he could aspirate Buboes of Cadavers before they were taken to Kitasato. • Optimum Growth of Isolates was 27°C to 30°C on Blood Agar. C. • Yersin bribed British Medical Authorities so he could get Blood Samples from Patients before they were examined by Kitasato. • Optimun Growth of Isolates was 37°C on Blood Agar. D. • Yersin bribed British Naval Guards so he could get Sputum Samples from Patients before they were examined by Kitasato. • Optimum Growth of Isolates was 35°C on Blood Agar.
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