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相关概念视频

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...
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Human Genetics01:28

Human Genetics

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
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Genetic Variation01:25

Genetic Variation

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Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles,...
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Incomplete Dominance01:43

Incomplete Dominance

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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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Comparing Copy Number Variations and SNPs02:26

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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.
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相关实验视频

Updated: Oct 19, 2025

Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
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在人类疾病遗传学中从变体到功能

Tuuli Lappalainen1,2, Daniel G MacArthur3,4,5

  • 1Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Stockholm, Sweden.

Science (New York, N.Y.)
|September 23, 2021
PubMed
概括
此摘要是机器生成的。

了解基因变异如何影响健康是关键. 新的功能解释方法正在改善人类遗传学的疾病诊断,风险预测和治疗开发.

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In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
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Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
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科学领域:

  • 人类遗传学
  • 分子生物学
  • 基因组医学

背景情况:

  • 人类遗传学的首要挑战是阐明将遗传变异与表型和疾病风险联系在一起的生物机制.
  • 功能变体解释的进步对于改变疾病诊断,风险预测和治疗发展至关重要.

研究的目的:

  • 讨论基因变异的分子和细胞影响的理由,方法,应用和未来前景.
  • 突出功能变异解释新方法的变革潜力.

主要方法:

  • 使用患者组织样本和体外模型来描述变异的影响.
  • 应用多种方法在各种人类细胞类型和环境中剖析变异机制.
  • 在临床环境中部署这些方法以获得更广泛的应用.

主要成果:

  • 新的方法使得在广泛的人类细胞类型和环境中对变异影响的描述成为可能.
  • 这些功能基因组学方法越来越多地被纳入临床实践.
  • 这项研究提供了对变异效应特征的当前和未来方向的全面概述.

结论:

  • 改善功能变体解释对于人类遗传学和精确医学的发展至关重要.
  • 将新方法纳入临床环境有望显著改善患者护理.
  • 在基因变异影响的持续研究和开发将推动疾病理解和治疗的未来突破.