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1 janv. 1955 - Joe Hin Tjio

Description:

This scientist worked on counting chromosomes and was the first to accurately count the number of chromosomes in a typical human cell. He counted the chromosomes from a photograph of human embryonic lung tissue in 1955.

Ajouté au bande de temps:

Date:

1 janv. 1955
Maintenaint
~ Il y a 70 ans

Les images: