This is a "Wild Mass Guess" entry, where we pull out all the sanity stops on theorizing. The regular entry on this topic is elsewhere. Please see this programme note.
Grand Unifying Guesses Bioshock
All of the following are derivatives of ADAM-based genetic engineering.
Spinach: The stuff looks like it could be made out of sea slugs.
Evangelions: They're just heavily-spliced clones of normal humans, with a bit of Angel DNA thrown in for good measure. The LCL in the entry plugs is just a heavily concentrated form of EVE.
Biotics: Eezo is just another form of ADAM. All biotic abilities are simply derivatives of Telekinesis.
Metal Gear Solid's Genome Soldiers are just Splicers waiting to happen, which is probably why the Patriots stopped using them after the first game. That, and their massive incompetence.
No way the whole combining humans and Daleks plan could have ever worked without huge quantities of ADAM. Which explains how the Doctor's Time Lord DNA really got into the hybrids; he just contaminated the ADAM. No magic lightning involved.
Red Flowers: They must be ADAM flowers. And Mimigas have different effects from exposure to it...
Nazi Zombies: The technology used by Dr. Maxis was the original form of ADAM, later revised by Brigid Tenenbaum. The Sea Slugs were used long before by Dr. Maxis, although he did not discover the genetic engineering that could be used on the Sea Slugs in order to create the semi-stable (At least for a short while) ADAM, as he quickly, after discovering the healing process, used them on the dead of the Nazi soldiers. They worked, but the soldiers were unstable and could not properly be restrained. Thus you have Nazi Zombies.