What If Cells Kept Receipts of Their Gene Expression? - WIRED

Researchers have found a new way to keep records of when a cell’s genes turn on and off—by harnessing systems that bacteria already use for self-defense.

They added the chemical that triggered the first gene (corresponding to barcode A) for 24 hours, followed by the one for the second gene (corresponding to barcode B) for the next 24. In theory we sho… [+3265 chars]

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