News tagged with hox genes

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, ...

Jun 06, 2013
not rated yet 0 | with audio podcast

Which came first the head or the brain?

(Phys.org) —A fundamental question in the evolution of animal body plans, is where did the head come from? In animals with a clear axis of right-left symmetry, the bilaterians, the head is where the brain ...

Mar 28, 2013 report
4 / 5 (5) 20 | with audio podcast

Extinct fossils reveal their genetic pattern

Researchers have provided a glimpse at genetic expression in long-extinct fossil dinosaurs. This new insight comes from the discovery of a correlation between the genetic patterning observed in today's chickens and crocodiles, ...

Oct 23, 2012
3 / 5 (3) 0 | with audio podcast

The skeleton: Size matters

Vertebrates have in common a skeleton made of segments, the vertebrae. During development of the embryo, each segment is added in a time dependent manner, from the head-end to the tail-end: the first segments to be added ...

Oct 27, 2009
4.5 / 5 (2) 0