I think that belief in a god is an individual choice. It comes down to the ancient dichotomy of Faith versus Reason. I feel that which one is right or wrong is a personal choice and neither should be used to coerce the other to adhere to one or the other. We are now gathering evidence that Amino Acids can be manufactured in a laboratory, and space exploration has found asteroids with amino acids in the crust. Amino acids are the building blocks of life, from primitive autotrophs to higher forms of life.
Ask this question to those that feel there is a God or Gods and the answer will be yes. As for proof they will steer you to a document, the Bible, Torah, Qur'an, Vedas, or any other written supporting document, that says there is. Ask of one who does not believe their answer will be no. They have philosophical arguments, scientific perspectives, personal journeys, or satirical and fictional works to back them up. The real answer is this. No one knows for sure as either way there is no empirical evidence to support their argument.