Editors' Choice

Development: The Digital Divide
Programmed cell death is an important process in development, with mammalian digits being just one such example. The bone morphogenetic proteins (BMPs) and their downstream targets, the Msx genes, are … [Read more]

Molecular Biology: Domestic Tidying-Up
Ciliates, such as Paramecium and Tetrahymena, are single-celled eukaryotes that deal with the junk DNA infesting their genomes in a truly dramatic manner. They harbor complete copies of their genome … [Read more]

Chemistry: Propping Up Cholesterol
Cholesterol is a key component of mammalian cell membranes, but where does it reside? Although it is usually thought to reside “upright” with its hydroxyl group at the water interface, … [Read more]

Biotechnology: Paths of Least Resistance
Shewanella. … [Read more]

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