Chicken video
Zebra fish video
Gene control video
Worksheet
JUST IF YOU WANT TO KNOW MORE:
Why don't our arms grow from the middle of our bodies?
The question isn't as trivial as it appears. Vertebrae, limbs, ribs, tailbone ... in only two days, all these elements take their place in the embryo, in the right spot and with the precision of a Swiss watch. Intrigued by the extraordinary reliability of this mechanism, biologists have long wondered how it works. Now, researchers have solved the mystery.
Worksheet
Zebra fish video
Gene control video
Worksheet
JUST IF YOU WANT TO KNOW MORE:
Why don't our arms grow from the middle of our bodies?
The question isn't as trivial as it appears. Vertebrae, limbs, ribs, tailbone ... in only two days, all these elements take their place in the embryo, in the right spot and with the precision of a Swiss watch. Intrigued by the extraordinary reliability of this mechanism, biologists have long wondered how it works. Now, researchers have solved the mystery.
Worksheet
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