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John is interested in using molecular diagnostics to solve industry issues – working on samples as diverse as wine, truffles, grapevine and human. He also consults on PCR and real-time PCR assay development as technical director for the company dnature.
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Allele-specific expression can occur for various biological reasons, such as gene imprinting, or differential transcription caused by mutations, or single nucleotide polymorphisms (SNPs), or epigenetic alterations. Traditional end-point RT-PCR or qRT-PCR-based methods only detect overall levels of mRNA expression from a given gene rather than mRNA transcripts originating from individuals. If your project requires more…
You can build your own PCR machine using tools and equipment you can get easily and without breaking the bank. Well, what are you waiting for?
Alu sequences are repetitive DNA sequences that are widely dispersed within the human genome. These “junk DNAs” are not as useless as one might think. An interesting method to use them is to quantify the number of integrated Human Immunodeficiency Virus (HIV) genome copies using Alu-PCR.
Scientific creativity and repetitive tasks do not go well together. There is nothing worse than having to repeat the same task over and over again – I know somebody who quit science because of this and became a castle curator. So how do you minimise the amount of one of the most repetitive tasks –…
During my postgraduate studies, I did literally one PCR reaction with a pre-optimised protocol on a not especially difficult template. So my karma came back with vengeance, when as a part of my first postdoc I had to amplify a template containing a 35 bp-long GC-rich stem-loop, which proved to be extremely difficult. This was…
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