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相关概念视频

Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

14.9K
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,...
14.9K
Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

17.6K
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%...
17.6K
Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
13.2K
Mutations01:39

Mutations

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Overview
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Alternative RNA Splicing02:18

Alternative RNA Splicing

21.0K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
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Multi-species Conserved Sequences02:51

Multi-species Conserved Sequences

3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
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相关实验视频

Updated: Jun 13, 2025

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
14:06

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER

Published on: June 23, 2012

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什么时候一个SNP不是SNP?

Shapour Jalilzadeh1, Valerie Walker2, Gary P Leggatt3,4

  • 1Population Bio UK, Inc., Oxfordshire, UK.

BioTechniques
|September 12, 2024
PubMed
概括

分段重复 (SDs) 复杂化了变种检测. 我们开发了方法来确认分段重复中的单核酸变异是一种文物,而不是真正的遗传发现.

关键词:
这是一个PCRPCR.这是SNVSNV.桑格尔测序是什么意思在T2T上,T2T是T2T.在TCAF2中使用.基因型 基因型 基因型在的中.一个伪造的假象.分段复制的重复.

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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry

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The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
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The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform

Published on: September 27, 2016

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相关实验视频

Last Updated: Jun 13, 2025

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
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Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER

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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry

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The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
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科学领域:

  • 基因组学就是基因组学.
  • 人类遗传学 人类遗传学
  • 分子生物学分子生物学

背景情况:

  • 分段重复 (SD) 是高度相似的DNA序列,对遗传变异分析构成挑战.
  • 由于短读测序的局限性,很难在SD中准确识别单核酸变异.
  • 单核酸变体rs62486260此前已在家族性结石疾病中被确定,但由于其位于SD中,其有效性不确定.

研究的目的:

  • 开发和验证一种方法来区分真正的遗传变异与细分重复中的文物.
  • 为了研究单核酸变体rs62486260.0. rs62486260. 的性质.
  • 为评估人类细分重复中的变异提供一种可概括的方法.

主要方法:

  • 在分析中使用,与湿实验室验证相结合.
  • 采用了特定于细分市场的长聚合酶链反应 (PCR) 试验.
  • 随后进行简短的PCR和桑格测序,以精确确定变异.

主要成果:

  • 单核酸变体rs62486260被证实是一种测序工件,而不是真正的遗传变体.
  • 开发的方法有效地解决了由细分重复引起的模糊性.
  • 证明了结合in silico和湿实验室方法用于变种验证的实用性.

结论:

  • 之前报告的单核酸变体rs62486260与家族性结石疾病相关,是人工制造的.
  • 描述的方法提供了一种可靠的方法,用于在细分重复区域中准确评估变异.
  • 这一策略适用于解决人类基因组研究中的类似挑战.