Re: Those conditions could be recreated in a lab.
I'm afraid such an experiment has already been done in a lab.
I saw the film in science class when I was in high school, although it used a "primitive Earth" enviroment instead of a Mars enviroment.
It even had simulated lightning. Nothing happened. It's a pity, it would have been scientific evidence of life springing from lifeless matter that you hear so much about but never see.