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beta-galactosidase

3D illustration of RNA polymerase (blue, middle) transcribing a segment of DNA (purple) into an RNA chain (red, extending to top).
The lac Operon: A Lesson in Simple Gene Regulation
Shelby Bradford, PhD | Dec 13, 2024 | 10+ min read
The discovery of an inducible switch in Escherichia coli that controlled lactose metabolism offered the first clues into gene expression.
Caught in the Act
Devika G. Bansal | Nov 1, 2017 | 6 min read
Molecular probes for imaging in live animals
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