False. Miller and his partner, Urey, were never able to produce a single living cell in their experiment. He was only able to create very simple amino acids.
The Miller experiment presented itself as proof that life beginning is reproducible in natural science. Yet, the primordial soup experiment developed by Miller and Harold Urey has lost public attention, since it has been found that only small parts of the essential basic elements for life grow under the primordial soup state.