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1 janv. 1891 - 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.

Description:

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

Ajouté au bande de temps:

DNA History

ByLizzy Cabbage
11 oct. 2017
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737

Date:

1 janv. 1891
Maintenaint
~ Il y a 134 ans
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