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Copy number variation (CNV) is a phenomenon in which sections of the genome are repeated and the number of repeats in the genome varies between individuals. [1] Copy number variation is a type of structural variation : specifically, it is a type of duplication or deletion event that affects a considerable number of base pairs. [ 2 ]
Copy-number variation (CNV) is a large category of structural variation, which includes insertions, deletions and duplications. In recent studies, copy-number variations are tested on people who do not have genetic diseases, using methods that are used for quantitative SNP genotyping.
It was known that copy number variation plays a big role in many human diseases but at the time large scale studies of these duplications had not been done. They decided to sequence 130 breakpoints from 112 individuals that contained 119 known CNVs by doing whole genome sequencing as well as next generation sequencing. [7]
Molecular inversion probe technique can also be used for copy number variation (CNV) detection. This dual role in SNP genotyping as well as CNV analysis of MIP is similar to the high-density SNP genotyping arrays which have recently been used for CNV detection and analysis as well. These techniques extract the allele-specific signal intensities ...
Copy number analysis is the process of analyzing data produced by a test for DNA copy number variation in an organism's sample. One application of such analysis is the detection of chromosomal copy number variation that may cause or may increase risks of various critical disorders.
An important part of the design of variant calling methods using NGS data is the DNA sequence used as a reference to which the NGS reads are aligned. In human genetics studies, high quality references are available, from sources such as the HapMap project , [ 10 ] which can substantially improve the accuracy of the variant calls made by variant ...