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相关概念视频

Genetic Variation01:25

Genetic Variation

1.2K
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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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 Screens02:46

Genetic Screens

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Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
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Organization of Genes02:07

Organization of Genes

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Overview
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Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

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In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
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Genetic Material01:20

Genetic Material

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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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相关实验视频

Updated: Jan 7, 2026

In Vivo Modeling of the Morbid Human Genome using Danio rerio
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IGVF目录 - - 从遗传变异到功能

Daofeng Li1, Shane Liu1, Pedro R Assis2

  • 1Department of Genetics, The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis,MO 63110, United States.

Nucleic acids research
|December 8, 2025
PubMed
概括
此摘要是机器生成的。

基因组变异对功能的影响 (IGVF) 联盟创建了一个开源数据平台,将基因组变异映射到功能和特征上. 该资源有助于研究人员了解遗传差异如何影响生物学和疾病.

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相关实验视频

Last Updated: Jan 7, 2026

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科学领域:

  • 基因组学就是基因组学.
  • 计算生物学 计算生物学
  • 系统生物学 系统生物学

背景情况:

  • 基因组变异对于理解个体之间的分子和细胞差异至关重要.
  • 将基因组变异与功能和表型联系起来需要综合的实验和计算方法.

研究的目的:

  • 为了确定基因组变异对功能的影响 (IGVF) 联盟.
  • 开发一个开源平台,IGVF目录,用于数据传播和分析.
  • 探索基因组变异,基因组功能和表型之间的关系.

主要方法:

  • 使用实验技术,如单细胞映射和基因组扰动测试.
  • 采用计算方法,包括基于机器学习的预测建模.
  • 在一个大规模的图形数据库中组织各种数据类型 (超过50种) (3亿个节点,75亿个边).

主要成果:

  • IGVF目录整合了编码变体对蛋白质丰度和功能影响的数据.
  • 它包括关于非编码变体对增强剂活性影响的数据 (MPRA和计算预测).
  • 该平台将变体与定量特征联系起来,并提供公共API端点和用户界面.

结论:

  • "IGVF目录"是一个全面的,开放的资源,用于研究基因组变异的影响.
  • 这个平台将促进科学界努力了解基因组功能及其在疾病中的作用.
  • 预计持续的数据整合和可访问性将推动基因组学领域的发展.