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関連する概念動画

Human Genetics01:28

Human Genetics

714
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...
714
Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

14.1K
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...
14.1K
Incomplete Dominance01:43

Incomplete Dominance

25.4K
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.
25.4K
Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

35.2K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
35.2K
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

15.8K
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,...
15.8K
Genomics02:02

Genomics

37.4K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
37.4K

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関連する実験動画

Updated: Sep 9, 2025

Infinium Assay for Large-scale SNP Genotyping Applications
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Infinium Assay for Large-scale SNP Genotyping Applications

Published on: November 19, 2013

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BiU-Net: 遺伝子型推定のための生物学的情報U-Net

Lei Huang, Kuan-Jui Su, Meng Song

    Research square
    |September 5, 2025
    PubMed
    まとめ

    BiU-Netは,ゲノム全体の関連性研究のための遺伝子型推定を改善し,ゲノム的な文脈を保存します. この生物学的情報に基づいた ディープラーニングモデルは 異なるデータセットに共通する変異と 珍しい変異の両方を正確に割り当てるのです

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    Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
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    Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
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    関連する実験動画

    Last Updated: Sep 9, 2025

    Infinium Assay for Large-scale SNP Genotyping Applications
    13:33

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    Published on: November 19, 2013

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    Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
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    Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
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    科学分野:

    • ゲノミクス
    • バイオ情報学
    • コンピュータ生物学

    背景:

    • ゲノムデータの欠落したゲノタイプは,全ゲノム関連研究 (GWAS) の統計力を低下させる.
    • 複合的なゲノム領域と集団の不一致で,参照ベースの帰算方法は課題に直面しています.
    • 現在のリファレンスのないディープラーニングモデルは,特に小さなデータセットでは,希少な変数を割り当てるのに苦労しています.

    研究 の 目的:

    • BiU-Netという新しいディープラーニングモデルを開発し,正確な遺伝子型を決定する.
    • 稀な変異の推定を強化し,ゲノム文脈を保存する.
    • 既存の最先端の方法と比較してBiU-Netのパフォーマンスを評価する.

    主な方法:

    • BiU-Netは,生物学的情報に基づくU-Netアーキテクチャで,遺伝子型データをセグメント化するために開発されました.
    • このモデルは位置情報を暗号化して,割り算中にゲノム文脈を維持します.
    • 性能は1000ゲノムプロジェクト,ルイジアナ骨粗鬆症研究,シモンズゲノム多様性プロジェクトという3つの異なるデータセットで評価されました.

    主要な成果:

    • BiU-Netは,Beagleと稀なコンボリュションの無音化オートエンコーダーと比較して優れたパフォーマンスを示しました.
    • このモデルは,評価されたすべてのデータセットで,よりよい全体的な割り算メトリクスを達成しました.
    • BiU-Netは,特にマイナーアレル頻度によって層分化された場合,希少変異を割り当てるのに有意な改善を示しました.

    結論:

    • BiU-Netは,遺伝子型推定に堅実で生物学的に情報に基づいたアプローチを提供します.
    • このモデルは,既存の方法の限界を効果的に解決し,特に稀な変異の推定に役立ちます.
    • BiU-Netは,全ゲノム関連研究の精度と力を向上させることを約束しています.