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Related Concept Videos

Histone Modification02:32

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Histone Modification02:32

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Epigenetic Regulation01:37

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...

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Related Experiment Video

Updated: May 26, 2026

Analysis of Transgenerational Epigenetic Inheritance in C. elegans Using a Fluorescent Reporter and Chromatin Immunoprecipitation (ChIP)
10:28

Analysis of Transgenerational Epigenetic Inheritance in C. elegans Using a Fluorescent Reporter and Chromatin Immunoprecipitation (ChIP)

Published on: May 5, 2023

The epigenotype. 1942.

C H Waddington

    International Journal of Epidemiology
    |December 22, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Understanding animal development requires studying the epigenotype, which bridges genotype and phenotype. This research explores the epigenotype's characteristics using the fruit-fly Drosophila melanogaster.

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    Analysis of Transgenerational Epigenetic Inheritance in C. elegans Using a Fluorescent Reporter and Chromatin Immunoprecipitation (ChIP)
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    Pattern-based Search of Epigenomic Data Using GeNemo
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    Pattern-based Search of Epigenomic Data Using GeNemo

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    Area of Science:

    • Genetics
    • Developmental Biology
    • Evolutionary Biology

    Background:

    • Genetics focuses on genotypes (hereditary constitutions) and phenotypes (adult characteristics).
    • The complex developmental processes connecting genotype and phenotype are termed the 'epigenotype.'

    Discussion:

    • This study introduces and defines the concept of the epigenotype.
    • It examines the general characteristics of the epigenotype.

    Key Insights:

    • The epigenotype represents the developmental pathways influenced by genetic and environmental factors.
    • Studying the epigenotype is crucial for a comprehensive understanding of how genotypes translate into phenotypes.

    Outlook:

    • Further research into the epigenotype will enhance our understanding of inheritance and evolution.
    • Comparative studies across species, like Drosophila melanogaster, can reveal conserved developmental mechanisms.