Tueolin (Aert ceTHE will accept the skin nen Ree thetebeexr. Mutations will occur. skin is rejected. But occasionally Then when the skin is transplanted that So we know that there are number of genes which control what is called histocompatibility. compatibility. ae In other words tissue There may be as many as I don't know, forty gat / such genes 3 which perhaps ten or fifteen may be the more hy omits \_important;| Bailey, We. Not we. I should say a chap by the name of Donald Bailey, who was a geneticist. He devised a technique for transplanting the skin of mice on their tails. That was nice because it was very easy to read the results of the experiment. extiriised=eessday. He was a worker supported by the Radiological Lab for a number of years. radiation and he did the genetics, Y/Y ’ a He and I, I did the looked for mutations phi in the histocompatibility cuca We never found any. way When I MERVoLD| went on later 78 to Harvard and extended these experiments mew® @ SS as ae ee eee— FO eg Ove head the cells carrying ak G tm do not survive for any great period of time. tney may be shunted aside. But in any case, tha=—=at—exemite>sm I believe it probably is the only such example. Donald Bailey left UCSF and (eetue FF aboratory at Bar Harbor in Maine where he became a senior investigatory and Esw@mimk for aynite Wry the director of the laboratory. BERGE: What part did radiation play in that? 15 I understood the