jan 31, 1885 - First-ever demonstration of artificial embryo twinning
Description:
Sea urchinHans Adolf Eduard Driesch
The sea urchin is a relatively simple organism that is useful for studying development. Dreisch showed that by merely shaking two-celled sea urchin embryos, it was possible to separate the cells. Once separated, each cell grew into a complete sea urchin.
This experiment showed that each cell in the early embryo has its own complete set of genetic instructions and can grow into a full organism.
Added to timeline:
Date:
jan 31, 1885
Now
~ 140 years ago