Thursday, January 18, 2007

Cute DNA ladder picture

Just arrived in lab at 10:49am and nobody else is here...wow. At least I don't feel like a twit for oversleeping today.

Got a flyer for some company selling ladders for electrophoresis and was about to throw it away, then I noticed this:

ROTFLOL that is cute.

(Quick explanation of DNA electrophoresis for non-biologists: you take a flat slab of agarose - aka purified agar-agar - with a row of holes along one end. You put DNA in the holes. You run an electrical current through the agar. Since DNA has a negative charge (it's deoxyribonucleic ACID mah), it goes toward the positive side. Since small bits can move faster than big bits (except in the anime universe, where giant mecha robots are the fastest known objects), you get a column of bits of DNA in order of size. A "ladder" is basically a mixture of DNA bits of known size that you run alongside your sample so you can tell what size your bits are (that sounded vaguely dirty...).)

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