Fill in the response. Read the following conversation: --How was Henrietta Lack involved in medical research? --Henrietta Lacks' cancer cells are the source of the HeLa cell line, the first immortalized human cell line and one of the most important cell lines in medical research. --Who did the research on Henrietta Lacks' cells? --George Otto Gey was the first researcher to study Henrietta Lacks's cancerous cells. --What did Georgo Otto Gey discover about Henrietta Lacks' cells? --George Otto Gey discovered that Henrietta Lacks' cells were unique in that they reproduced at a very high rate and could be kept alive longer. --What is the impact of the research on Henrietta Lacks' cells? --Ronald J. Daniels said, “Through her life and her immortal cells, Henrietta Lacks made an immeasurable impact on science and medicine that has touched countless lives around the world” --What important medical breaktrhoughs did the reproduction of HeLa cells lead to? --By 1954, Jonas Salk was using HeLa cells in his research to develop the polio vaccine. --In what other ways have the HeLa cells been used in research? --
Chester M. Southam injected HeLa cells in order to observe whether cancer could be transmitted and if one could become immune to cancer by developing an acquired immune response.