Harvard University uncovers DNA switch that controls genes for whole-body regeneration

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A piece of non-coding DNA may hold the key to how humans could regenerate body parts

Humans may one day have the ability to regrow limbs after scientists at Harvard University uncovered the DNA switch that controls genes for whole-body regeneration.

Some animals can achieve extraordinary feats of repair, such as salamanders which grow back legs, or geckos which can shed their tails to escape predators and then form new ones in just two months.

Planarian worms, jellyfish, and sea anemones go even further, actually regenerating their entire bodies after being cut in half.

Now scientists have discovered that that in worms, a section of non-coding or ‘junk’ DNA controls the activation of a ‘master control gene’ called early growth response (EGR) which acts like a power switch, turning regeneration on or off.

Continue reading… “Harvard University uncovers DNA switch that controls genes for whole-body regeneration”

The flying machine that was inspired by a jellyfish

Flying robotic jellyfish.

Leif Ristroph, an applied mathematician at New York University, wanted to build the “simplest possible” flying machine.  Ristroph glued together several tubes of carbon fiber to build this: a sphere with four wings attached to it that propels it as a jellyfish swims. (Video)

 

 

Continue reading… “The flying machine that was inspired by a jellyfish”

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