The gene code of growing limbs

When a fetus develops, cell division and differentiation, gene expression, cell-to-cell signaling, and morphogenesis must be carefully coordinated to occur in the correct sequence and for the proper amount of time. Failures ...

New materials exhibit split personality

Julia Greer, professor of materials science, mechanics and medical engineering in Caltech's Division of Engineering and Applied Science, creates materials out of micro- and nano-scale building blocks that are arranged into ...

The swing of architect genes

Architect genes are responsible for organizing structures of the body during embryonic development. Some of them, namely the Hox genes, are involved in the formation of forelimbs. They are activated in two successive waves, ...

Evolution: The genetic connivances of digits and genitals

During the development of mammals, the growth and organization of digits are orchestrated by Hox genes, which are activated very early in precise regions of the embryo. These "architect genes" are themselves regulated by ...

Why hospital architects need to talk to nurses

Many of us pay close attention to how our taxes are spent, and how well governments invest in infrastructure projects such as roads, schools and hospitals. Value for money is key. Yet horror stories of waste, lateness and ...

Young people choose education based on parents' background

Even though Danish students have equal access to education, their choice of studies is still influenced by social class. Young people from working class backgrounds are motivated by studies with a clear job profile and high ...

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