According to Johnson, "Using Schematics To Troubleshoot HVAC/R Electrical Circuits, Part 1" came about because of feedback from the industry. "It’s shorter than our fundamentals training videos, and ...

Schematic for adapter and primer design for the two rare cutters EcoRI and PstI and the frequent cutter MseI. Adapters consist of a core sequence (black) and an enzyme-specific sequence (red).