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Avery searched for radioactivity and found it only within the bacteria, not the virus shells. Hershey and Chase then reversed the experiment, spiking the protein in the viruses with radioactive tracers. Once the viruses had infected E. coli, only the empty shells were radioactive. A decade after Avery’s experiment,
Carl Zimmer • Microcosm: E. coli and the New Science of Life
pauvre… lui qui avait carrément professé que les cellules étaient passionnantes, et les humains négligeables… la leçon était cruelle. Et il n'avait rien pu faire. Parallèlement à ce désastre, il a eu des disputes avec ses collègues de « Sweetmilk Corporation ». Il a quitté son travail pour rester prostré dans son appartement. Ling mi lui avait redo
... See moreBernard Werber • Les Fourmis (French Edition)
Through the Looking Glass, and What Zheludev et al. (2024) Found There
Ivan N. Zheludevopen.substack.com
Biotechnology
Yash Mimani aka ahafisher and • 16 cards
As E. coli runs out of its essential nutrients, its ribosomes get sloppy, producing misshapen protein that attacks other molecules. The catastrophe can ripple out across the entire microbe. To continue to grow under such stress would be suicidal, like driving a car over a cliff. Instead, E. coli slams on the brakes. In a matter of seconds it stops
... See moreCarl Zimmer • Microcosm: E. coli and the New Science of Life

To see how the mold’s genes control those enzymes, Beadle and Tatum bombarded it with X-rays.