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Related Concept Videos

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
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Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Principles of Pharmacogenetics: Types of Genetic Variants01:27

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The human genome is over 99.9% identical between individuals, yet genetic differences exist at millions of bases. The human genome contains approximately 3 million variant positions per individual, many of which are heterozygous, contributing to genetic diversity and individual traits. Genetic variations include single-nucleotide polymorphisms (SNPs), insertions, deletions, and copy number variations (CNVs).SNPs, the most common variation, involve single-base changes in DNA. These can be...
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Genome-wide Association Studies-GWAS01:11

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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.
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Behavioral Genetics and Its Designs01:23

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Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
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Human Genetics01:28

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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.
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Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays
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Identification of consistent functional genetic modules.

Jeffrey C Miecznikowski, Daniel P Gaile, Xiwei Chen

    Statistical Applications in Genetics and Molecular Biology
    |January 13, 2016
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel pathway discovery method to identify gene modules controlling specific outcomes, like disease biomarkers. The approach uses network consistency for superior performance in functional network analysis.

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    Area of Science:

    • Genomics
    • Systems Biology
    • Bioinformatics

    Background:

    • Identifying functional gene modules is crucial for understanding biological responses, regulatory networks, and disease mechanisms.
    • Existing methods may struggle with complex functional networks controlling specific outcome variables.

    Purpose of the Study:

    • To develop a pathway discovery method for identifying gene modules associated with a particular outcome variable, such as a disease biomarker.
    • To introduce and apply the concept of network consistency for robust functional network identification.

    Main Methods:

    • Discussed statistical properties of functional networks.
    • Introduced the concept of network consistency for cooperating genes.
    • Developed a pathway discovery method directly utilizing network consistency.

    Main Results:

    • The proposed method demonstrates superior performance compared to existing approaches.
    • The method is effective for identifying functional networks controlling outcome variables.

    Conclusions:

    • Network consistency is a key property for real functional networks of cooperating genes.
    • The presented pathway discovery method offers improved accuracy for identifying biologically relevant gene modules.