It has only 473 genes, and many of them are a complete mystery.
Programming the Code: J. Craig Venter Talks Building DNA (And Organisms) From Scratch... And I Have Questions!
He said they can take a full DNA sequence, place it into an organism's cell, like an algae cell, and then the new code takes over and erases the natural, original DNA, and the cell becomes the programmed DNA's entity. But why wouldn't the cell fight off the new DNA as if it were a virus?
At first, nothing happened. The team scrambled to find out why, creating a genetic version of a computer proofreading program