Let us piece together a scenario.
Go back in time about 200 years. Imagine there were no computers. Imagine a guy in a laboratory trying to create a homo sapien being. He has at his disposal an abundant supply of every element known to man. He has at his disposal all the petri dishes, agar, non-electric scales, latex gloves, goggles, tweezers, an abundant supply of all the amino acids, devices to emit every type of radiation known and not known to current 2008 man, light sources that can emit all frequencies possible, etc... Even though they didn't have some of these items even 200 hundred years ago, just imagine that he had for the fun of it.
This guy wants to create a homo sapien being as I had already stated.
How should he go about it WITHOUT using any cells of any kind of a homo sapien. Let's just also say for the sake of it that he has every single-celled organism known to this Earth that has ever been here.
How should he go about creating a human being? If you want to really broaden the scope of this scenario, how would he go about creating any time of living creature OTHER THAN one of its own kind because remember he does have every single-celled organism available at his disposal and/or use as well? How would he go about programming DNA sequences. How would he go about telling the single-celled organisms to congregate and change into a multi-cellular organism? Let's even say this scientist has all the knowledge of the most intelligent and versed geneticist known today, November 11, 2008.
Let's here it.