> Rupert Sheldrake speaks of this when he says that the genetic code's protein construction genes do not and can not account for the resulting organism's shape. That coordinated construction requires a separate guiding force.

Of course there's a separate guiding force. It's the biochemical environment around the cell. Cells operate on chemical signals they receive from their environment and generate the same; these cause cells to differentiate themselves based on their genetic code, which where the resulting organism's shape comes from. This isn't some kind of mystery, we know how this works, and matter & energy are indeed sufficient to explain it.