First-ever demonstration of artificial embryo twinning (2 ene 1885 año – 31 dic 1885 año)

Descripción:

Dreisch showed that by shaking two-celled sea urchin embryos, it was possible to separate the cells. Once separated, each cell grew into a complete sea urchin. This showed that each cell has its own complete set of genetic instructions and can grow into a full organism.

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