Word: repressors
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Dates: during 1970-1979
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About three months ago he discovered that two proteins of the virus bind to the host cell's DNA and determine the cell's growth pattern. One protein activates the genes that trigger destructive growth, while the other, the repressor protein counteracts the growth...
...Harvard researchers concluded that carcinogens split repressor proteins in two, eliminating resistance to destructive growth, Ptashne said...
...must be learned about ribosomes." In the 1970 edition, there are twenty pages of new information. There is also new information on specific genetic mutagens, enzymes for genetic mutagens, enzymes for genetic recombination, specific factors to start and stop RNA transcription, new known gene codes, new material on operon-repressor systems, and much more...