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People would have said that a USB sequencer not much bigger than a memory stick which could sequence genomes in 50kb+ read-lengths was impossible “’Star Trek’ technology!" Now, that futuristic technology is here.
last updated: November 1, 2021
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Bisulfite pyrosequencing is becoming a routine technique in molecular biology labs as a method to precisely measure DNA methylation levels right down to the single base. The technique allows for detailed and high resolution analysis of DNA methylation at specific genomic regions. How to detect the 5th base? Methylation of any of the four nucleotides…
You’ve carefully collected your samples, extracted nucleic acids and made your first set of next-generation sequencing libraries. How are you going to know if the data you get back is any good and whether it will be worth the effort in learning how to do the analysis? Who is to blame? Fortunately, there are several…
Welcome to the magical world of systematics! Looking for a way to produce a phylogenetic tree that’s a step above the default options, time efficient, not too program heavy and avoids using command line programs? Although there are more rigorous analyses that strict systematists perform, for your purposes, the following should suffice. 1. Data selection…
Today, the gut microbiome is garnering a large amount of media attention for its role in human health and disease. From influencing immune responses to impact our brain, the gut microbiome is an important and necessary aspect of our life. So much so, that current investigations in the gut microbiome are focusing on developing biomarkers for…
Imagine directly creating a mutation at (almost) any site in your target genome instead of screening thousands or millions of random mutants! The CRISPR/Cas9 system does just that. In its traditional form, this forward genetics approach takes 7 steps from start to mutated genome. However, there is a way to obtain your designer genome in…
There are several methods for size-selecting DNA fragments prior to sequencing. How do you choose which is best? Here’s a look at various options, plus considerations to help you determine when to use each one. Manual Gels Virtually every student in a biology lab knows how to prepare and cut a manual gel—but their ubiquity…
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