A central clock runs the cell division cycle

Each time a cell divides, it replicates its DNA once, then separates the two copies from each other and splits into two daughter cells. The event is intricately coordinated and was long known to be under the influence of ...

A newly discovered way for cells to die

Some cells are meant to live, and some are meant to die. The linker cell of Caenorhabditis elegans, a tiny worm that is a favored model organism for biologists, is among those destined for termination. This cell helps determine ...

A virus common among livestock depends on a micro-RNA to replicate

In the ongoing arms race between pathogenic viruses and the cells they infect, each side needs every advantage it can get. One way wily viruses can get a leg up is by subverting the microRNAs (miRNAs) of their host. These ...

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