What did german scientists and physicians do to further the idea of “a perfect race? ”?

The German scientists and physicians carried out genetic mutations to further the idea of “a perfect race".

The German scientists and physicians, on the orders of Adolf Hitler, performed complex laboratory experiments on humans in multiple attempts to change the structure of their genes through the available techniques of genetic mutation.

These mutations were intended to help the respective human beings turn into a superior form of humans. Mustard gas extensively used during these experiments.

The people died in the holocaust did not fit the definition of humans in perfect race. The people died from the gruesome experiment implemented on them are termed as “Angel of Death”.