some poor schmucks had to fill all 2000 tubes of saline

DNA Stands for Do Not Attempt…

The students are going to be studying DNA in lab this week, and Prep Staff is running a text experiment to make sure that all the reagents and equipment will work properly.

The experiment involves something called PCR.  That stands for …. I’ve never figured out what, exactly.  I’m going to assume it stands for Please Contribute Resources, so I’m doing exactly that.

Because I’m helpful like that.

Anyway the idea is that it can take a teeny, teeny, teeny amount of a person’s genetic material and make a bazillion copies so it can be analyzed.  Prep Staff is getting a sample from various people on the floor.  Obviously, they want the finest DNA possible, so I’m giving them a sample.

I have my little tube full of sterile saline, here.

PCR1

Next, I label a cup with my name…

PCR2

Well, that was predictable.  Sigyn, my love, you’ve contaminated my cup!  Your lovely DNA is all over it now and I’ll have to get a new one.

Where was I?  Oh, yes.  I’m going to swish the saline in my mouth for a moment or two…

PCR3

Spit it into this new cup…

PCR4

And then pour it carefully back into the tube.

PCR5

That is some precious Jotun saliva, right there.

Next, the tubes of saliva will go into the big centrifuge.

But first, a little ride…

PCR6

After a spin, it’s all alcohol and primers and a long, boring wait for the thermocycler.  We’ll check back in later to see how it all turned out…

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