Thee Goo at the start of the movie was actually like a silver and gold in color it was thicker, like kind of a butter substance.
Once it was ingested it then turned black, thats not to say that it changes black anyway or it could be it changes black when it is breaking down the DNA of its victim.
This is the great thing with the Ambiguity and also counter conflicts that Weyland Files produce, it means its not clear as to the connection and each person will arrive to a different conclusion.
I described mine and why in this post, the Weyland Files however point to my theory being wrong, but then it does say like only 10% accurate translation lol.
You see the problems i have with the goo being the same are as follows...
1) Our DNA matched the Engineers because we came from them, well from the Sacrificial scene. Thats why we look similar.
How come the events from contact with the Goo in Urns produces Mutant Hybrids that have Xeno Traits?
How come life on Earth does not have Xeno Traits?
2) If only Xeno Traits occur from other organisms and not Engineers i.e if they take the Goo then they break down genetically, then why was the Engineers so afraid of a outbreak that would just produce Engineer DNA that would evolve organism not like the Xeno, because if thats not the case then why did no Xeno related Organism evolve from the Sacrificial Scene?
3) If ingestion breaks down the DNA but contact with skin etc, mutates them into monsters, why does the Head show signs of breaking down?
The Engineers all appeared to have holes from maybe exploding under pressure caused by the reaction of being broken down like the Sacrificial Engineer.
If not then they did not mutate into life forms like Fifield, maybe one or a few did or something else caused the holes in those bodies. Its just to Ambiguous to know.
4) Related to above, if Holloway consumed the substance and thus as he did this he was breaking down at a slower rate, then why did having sex with Shaw lead to the closest thing in the movie to a Xeno Life Cycle.
So its very confusing and makes no sense not how Weyland files suggest.
What i make from the Clues makes sense, and also Spaights method of the Scarabs is the same.
The only other explanation is as follows...
Goo when ingested in large amounts by a Engineer breaks his DNA apart and then reforms to make new Organisms, or mutates organisms that contain Engineer DNA
Goo when in contact with Engineers skin, either causes them to break down in a different manner well slightly or causes them to become hybrids but not dramatic transformation.
Both of the above because their DNA is pure....
Goo when consumed by other none Engineer organisms, breaks them down but depends on amount consumed and as the DNA is breaking down some enters a state of mutation some cells become mutated as opposed to broke down i.e Sperm...
When Goo comes into contact with other organism other than Engineer it mutates the Organisms DNA into a Hybrid Organism
And all these mutations and break downs some how have a relation to Xeno DNA some how....
But with a Engineer the mutation is not as severe and thus no real Xeno traits as the Engineers are PURE!
R.I.P Sox 01/01/2006 - 11/10/2017