Angels and evolution

I peered nearsightedly into my test-tube of gunk. "So that layer of white stuff floating at the top, that's it right?"

"Yes," the lab assistant grinned proudly, "that's the DNA extract. Good job."

I blinked at it disinterestedly -- you would too if you saw how much like phlegm it looked. "Oh," I said, "that's rather anti-climatic. I was expecting something much cooler."

"Like what?" another lab assistant sneered in my general direction. "Flashing lights?"

"Well... angels and trumpets maybe, but that would probably be blasphemous."