Biotechnology Basics: SDS Polyacrylamide-Gel Electrophoresis

What is SDS-PAGE? SDS polyacrylamide-gel electrophoresis, or SDS-PAGE, is a technique that is used to separate proteins according to their molecular weight.  What do I need to separate proteins?  In addition to your protein sample, you will need:  Sodium Dodecyl…

Biotech Basics – Visualizing DNA

What is agarose gel electrophoresis? Electrophoresis is a technique that allows us to separate DNA, RNA or proteins into bands according to their size.  For more information about this technique, be sure to check out our previous post describing electrophoresis.…

Biotech Basics: Accuracy and Precision in Measurements (and a #SciArt Project!)

  What is the difference between accuracy and precision? Accuracy describes how close a measurement is to the true value of a given quantity.  Precision describes the reproducibility of the measurement. Accordingly, measurements can be categorized as follows: Neither accurate…

Biotech Basics: Agarose Gel Electrophoresis

Agarose gel electrophoresis is a biotechnology technique used to separate DNA molecules according to their size.  The mixture of molecules is added into depressions (or “wells”) within a gel, and then an electrical current is passed through the gel (Fig.…