This vertebra was a salamander. This experiment was done by Hans Spemann in 1902. The first challenge that Spemann ran into was that embryos are much harder to split than sea urchin cells. How he did this was he made a very small noose made of baby hair and wrapped it around the embryo and tightened it until the two cells of the salamander embryo separated. Adult salamanders grew from each of these cells. He also tried this same method with more advanced salamander embryos but the result wasn’t as successful at fully developing into adult salamanders. The findings from this research and experimentation was that embryos from a more complex organism could also be ‘twinned’ similar to the sea urchin to create multiple identical organisms up to a certain point in
This vertebra was a salamander. This experiment was done by Hans Spemann in 1902. The first challenge that Spemann ran into was that embryos are much harder to split than sea urchin cells. How he did this was he made a very small noose made of baby hair and wrapped it around the embryo and tightened it until the two cells of the salamander embryo separated. Adult salamanders grew from each of these cells. He also tried this same method with more advanced salamander embryos but the result wasn’t as successful at fully developing into adult salamanders. The findings from this research and experimentation was that embryos from a more complex organism could also be ‘twinned’ similar to the sea urchin to create multiple identical organisms up to a certain point in