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Andrew has been a freelance life science writer for more than 20 years. Worked for academic institutions, startup biotechs, major biopharmaceuticals. Agriculture editor, Genetic Literacy Project. He has an MS in Biotechnology from the University of Maryland, and a BA in Physical Anthropology from the University of Pennsylvania.
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When restrictions come in the form of paperwork and approvals, we detest them. Whereas, when the restrictions come in the form of enzymes, we love them, don’t we? Restriction enzymes play a key role in biotechnology research. Read ahead for six useful facts about restriction enzymes. 1. Restriction enzymes are helpful to bacteria Restriction enzymes…
So, you’ve extracted your precious RNA and want to check its quality on a gel. Conventionally, you would run a formaldehyde gel, which is messy and requires a lot of prep. Plus, it is a huge undertaking in terms of time (and money) if all you want to do is just check the quality of…
Whatever molecular biology techniques you use, at some point you will have to clean up your DNA samples to remove things like buffers, contaminants and nucleotides from you precious sample, so that you have perfectly pure DNA for your downstream experiments. Magnetic beads are one DNA cleanup option. They are simple and effective—and their reassuringly…
All over the world, molecular biologists are tragically wasting hours of their life running DNA gels using tris-based conduction buffers like TBE or TAE. These buffers are known to overheat at high voltages, causing problems with gel integrity, sample denaturation and more. Because of this, molecular biologists are forced to keep the voltage of their…
Controls are obviously extremely important when setting up experiments. Without them, a meaningful interpretation of the experimental results would be impossible. I say obviously, but in my previous job as a technical services scientist, you’d be surprised at how often I found myself talking to customers about the importance of controls. One customer commented, during…
When I began a master’s program in 2008, the lab task I hated more than anything was running agarose gels for DNA. Something so simple, ubiquitous, and necessary gobbled up more hours in the lab than I care to remember. Even though we added the DNA stain directly to the molten agarose and didn’t have…
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