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18 feb 1959 año - Down Syndrome Cause Found

Descripción:

In 1959 It was discovered that down syndrome is caused by a random genetic mutation that add an extra chromosome in each cell.

Añadido al timeline:

Down Syndrome Timeline

ByDrew Zins
31 ene 2018

fecha:

18 feb 1959 año
Ahora mismo
~ 65 years ago
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