Everyone has differences on their DNA, son. Of course you are human- one only has to take a look at you.

[But he knows that's not enough. He looks pretty much humanoid and he's an alien, not human in the least.]

Like I said the difference is minimal. And it was obviously beneficial, seeing how smart you are. [He doesn't know the cons of this, but he's sure there will be. Playing with genetics is never a smart move- but that will be dealt with when the time comes.]