Holdontoyourhat
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Here's another interesting animation. Click on the nucleus and you'll see that within the cell, the DNA is inside the nucleus.
http://learn.genetics.utah.edu/units/basics/cell/
DNA is really tiny. What was found in the Bloomies was not even a complete DNA profile.
Now here is my question: how many cells do you have to have to figure out if it's skin or saliva, etc.? The Bode Tech scientist said they know it wasn't spermatozoa nor blood, because those have obvious components they recognize easily--I'm speculating here as she didn't explain fully. So why can't they figure out if the DNA they have is skin or saliva, etc.? Not enough?
Maybe they're not telling.