[neatoman]

Originally Posted by Andrew NDB

Spoiler:

Though wait... they somehow distill the remains of the Alien drone from Alien into the black goo (#1, how?), but how do they use that to create another Alien drone?

Spoiler:

They don't really explain how they extracted the goo. As for the second question, I don't really know that either. They are however keeping facehuggers on ice, so cloning maybe? I also think the movie is operating on the logic from the alternate cut of Alien 1, where the queen isn't really necessary and the Aliens can just sort of "craft" the eggs.