How did a Queen egg end up inside the Sulaco? - Scified

Scified
How did a Queen egg end up inside the Sulaco?
Scified
Was it even possible for the Queen in "Aliens" to lay an egg on the ceiling of the Sulaco spacecraft? Can the Queen control what kind of egg she lays wether its soldier xenomorphs, or a "queen" egg? Did Bishop put it there? How could the Queen ...