dhw: How do cells know xyz? Great question. Maybe they have an intelligence of their own. Just a thought!

DAVID: Like good little soldiers they follow instructions in their genome.

dhw: Yeah, but who/what issues the instructions? General God or General Genome?

DAVID: Of course, God, who started life, set up the instructions and marching orders.

Or perhaps Genome, who perhaps is intelligent enough to do his own information-processing and take his own decisions and give his own instructions, and who perhaps was given his intelligence by your God, who perhaps exists.