Many RNA-binding proteins have a modular structure and are composed of multiple repeats of a few small domains. By arranging the domains in various ways, these proteins can satisfy the diverse ...

Refuting previous studies, the authors show by computer simulation that modular structures can arise during network growth via a simple model of gene duplication, without a natural selection ...

A new study compares the development of the egg laying organ in two species of nematodes; with its results providing support for the theory of developmental systems drift. This theory maintains that, ...

A cache of fossils recently unearthed in northeastern Newfoundland reveals that some of Earth’s earliest large organisms had modular body plans whose main architectural element was a branching, ...

When a user pulls the string, the structure moves smoothly into its final 3D form. If the user releases the string, the ...