Joshua Lederberg was born in 1925 in Montclair (New Jersey, USA). He graduated at age 19 at Columbia College in New York and completed his medical studies at Columbia University (New York). She received her Ph.D. at Yale University and earned a doctorate degree in 1948. then moved to the University of Wisconsin Professor of Genetics, where he obtained the chair of that product. He was later appointed director of the Department of Genetics, Stanford University and director of the Kennedy Laboratories for Molecular Biology.
While doing research at Yale, found that bacteria have a primitive sexuality, ie, that reproduce by conjugation, a mutual exchange of genes between sexually undifferentiated unicellular organisms. This finding dramatically expanded the possibilities of genetic research. It was considered even more important as the subsequent discovery that some viruses carry hereditary material from one bacterial cell to another, thereby altering the inheritance of their guests. This process is called "transduction" .
For their discoveries concerning genetic combinations and the organization of the genetic material of bacteria obtained the Nobel Prize in Physiology or Medicine in 1958, shared with George W. Beadle and Edward Lawrie Tatum.
work Author: Torres, Francisco.
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