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Related Concept Videos

Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
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Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
09:16

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Published on: February 21, 2015

Molecular methods for genotyping complex copy number polymorphisms.

Stuart Cantsilieris1, Paul N Baird2, Stefan J White3

  • 1Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia; Centre for Reproduction and Development, Monash Institute of Medical Research, Monash University, Melbourne, Victoria, Australia.

Genomics
|November 6, 2012
PubMed
Summary
This summary is machine-generated.

Genotyping copy number polymorphisms (CNPs) in complex genomic regions is challenging. This study details molecular techniques for accurate CNP genotyping, aiding genetic association studies.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Population Genetics

Background:

  • Genome structural variations, including copy number polymorphisms (CNPs), are complex.
  • Discovering CNPs has advanced, but reliable genotyping, especially in complex genomic regions, remains a significant challenge.
  • Common CNPs with variable copy numbers are particularly difficult to genotype accurately for association studies due to technical assay limitations and regional sequence properties.

Purpose of the Study:

  • To detail molecular techniques for genotyping complex copy number polymorphisms (CNPs).
  • To compare and contrast different approaches for determining multi-allelic copy number.
  • To discuss the application of these genotyping techniques in genetic studies.

Main Methods:

  • Detailed description of various molecular techniques used for CNP genotyping.
  • Comparative analysis of different methods for assessing multi-allelic copy number.
  • Evaluation of the suitability of these techniques for genetic association studies.

Main Results:

  • The study provides a comprehensive overview of methods for complex CNP genotyping.
  • Comparison highlights the strengths and weaknesses of different techniques for multi-allelic copy number determination.
  • The described methods offer solutions for overcoming current genotyping challenges.

Conclusions:

  • Accurate genotyping of complex CNPs is crucial for advancing genetic studies.
  • The discussed molecular techniques provide valuable tools for researchers.
  • These methods have the potential to improve the power and scope of genetic association studies involving structural variations.