puzzled..

Rating: 8/10 (5 June 2017)

Just before seeing Alien Covenant I watched Prometheus once more. After Alien Covenant I am puzzled about the black liquid David puts in Holloway's drink. It is the same black fluid that David uses to wipe out an entire civilization. They die instantly after being in contact with the stuff. The stuff is apparently a weapon of mass destruction. Why then does the fluid alter Holloway's semen? Does a small dose alter the reproductive DNA, so the offspring is therefore alien? And a large dose kills instantly as on the home planet of the engineers? Or is the fluid apparently distilled from alien eggs as on Alien Covenant where the eggs produce a substance that grows an alien in the schlimazel's body after infecting? Why does that stuff grow an alien entity instantly in the host body, whilst Shaw/Holloway via the reproductive way? Or do we have to wait until the next (explaining) sequel?