The origin of genes is off-topic for this thread. Please keep discussion focused on human evolution. --Admin
First of all the Darwinian answer would be gradually over time. That is not too far from the truth.
Where's the evidence for that?
Where they come from,
So science cannot address how genes get here?
Only that they are slight, successive and gradually accumulated over vast periods of time.
Do the facts match those predictions?
No. At least, I haven't seen them. Maybe you can provide some evidence? Say, look at the theoritical common metazoan ancestor and the lineages that followed, or somewhere else?
Edited by randman, : No reason given.
Edited by Admin, : Add note at top.