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last updated: March 27, 2025
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PCR was actually one of the first lab techniques I learned as an undergrad. Despite being sometimes labeled as a pretty basic lab skill, PCR doesn’t always work as expected. This “fickle” success is due to small details or hidden hazards within the PCR workflow that can cause your seemingly uncomplicated experiment to fail. This…
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You’ve cultured your cells and completed your treatments, now it’s time to harvest them and proceed to the downstream effects. Cell lysis is the crucial stage that determines if your experiment has a chance of producing the data that you have been waiting for. Part of the starting biological material is inevitably lost on each…
Pat yourself on the back, you saw a post with the word “coding” in the title and you didn’t freak out or glaze over. That’s the first step. Coding seems to have such a stigma attached to it; people tend to think that it’s incomprehensible nonsense that they could never learn, and that it has…
I think we all have been through those my-PCR-product-didn’t-get-amplified days. Sometimes, playing around a bit more with the PCR conditions brings luck, or sometimes it doesn’t work at all. These days we have access to many different types of DNA polymerases, ultrapure and buffered nucleoside triphosphates, and other necessary starting materials in convenient concentrations; but…
Dear Aunt Yersinia, I work with a yeast vector where my gene is under a Gal promoter. My boss told me to grow yeast in medium with sucrose, and then add galactose to induce the promoter. I did it, but my protein is not induced; the Western blot is empty. I sequenced a part of…
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