Contents
What is the purpose of FastQC?
FastQC, written by Simon Andrews of Babraham Bioinformatics, is a very popular tool used to provide an overview of basic quality control metrics for raw next generation sequencing data. There are a number different analyses (called modules) that may be performed on a sequence data set.
How do I run FastQC on a Mac?
This is what I have tried:
- Download and expand FastQC-0.11. tar. gz.
- Navigate to the expanded folder.
- run chmod +x fastqc`
- sudo ln -s /Absolute/path/to/fastqc /usr/local/bin/fastqc.
How do I know if FastQC is installed?
Linux: From your applications menu look for an application called ‘Terminal’ or ‘Konsole’. Either of these will give you a usable shell. If you get an error then you don’t have java installed. If the version listed on the first line is less than 1.6 then you might have problems running FastQC.
Why is high GC content bad?
At any given temperature, you end up with either non-specific binding or no binding in one of the primers, or both. Second, high GC can give you G-runs in primers or products. 3 or more Gs in a run may result in intermolecular quadruplexes forming in the PCR mix before or during amplification.
How to get from FASTQ to BAM in 8 steps?
Download both the software and follow the installation procedures provided by the relative websites. rsync -avzP rsync://hgdownload.cse.ucsc.edu/goldenPath/hg19/chromosomes/ .
How can FastQC be used for quality control?
FastQC provides a simple way to do some quality checks on raw sequence data coming from high throughput sequencing pipelines. It provides a modular set of analyses, which you can use to obtain an impression of whether your data has any problems that you should be aware of before moving on to the next analysis.
What kind of file is a FASTQ file?
The FASTQ file format is the defacto file format for sequence reads generated from next-generation sequencing technologies. This file format evolved from FASTA in that it contains sequence data, but also contains quality information.
Why does sorted Bam give a better compression ratio?
This helps to give a better compression ratio, because similar sequences are clustered. Moreover the order of the information in the BAM file have effects on the compression of that data, so that the sorted BAM can resulting in a smaller file than the original. I hope you find this post useful!