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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 1891 ano - Hans Dreisch split a fertilized sea urchin egg which was at the two-cell division stage by hand. Each cell subsequently developed into two small but identical sea urchin larva.

Descrição:

His research was carried on by Hans Spemann in Germany and Ross Harrison in the US.

Adicionado na linha do tempo:

DNA History

ByLizzy Cabbage
11 out 2017
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Data:

1 jan 1891 ano
Agora
~ 134 years ago
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