Dental team tweaks DNA to improve plant-based medicines

Henry Daniell, a professor in the departments of Biochemistry and Pathology in the University of Pennsylvania's School of Dental Medicine, has found great success in using genetic engineering to coax lettuce and tobacco ...

Researchers discover new rules for quasicrystals

Crystals are defined by their repeating, symmetrical patterns and long-range order. Unlike amorphous materials, in which atoms are randomly packed together, the atoms in a crystal are arranged in a predictable way. Quasicrystals ...

Study identifies new mechanism of RNA degradation in plants

The totality of RNA molecules in an organism at any one time is the product of a delicate dance. Genes must be "turned on," or expressed, in order to turn DNA into RNA and then that RNA into proteins that accomplish an organism's ...

Today's most successful fish weren't always evolutionary standouts

Take a glance around the oceans, rivers and lakes of today and you'll confront an astonishing diversity of fish, from narrow-bodied eels to the 25-foot-long giant oarfish to delicate, fluttering seahorses. The vast majority ...

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