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Related Concept Videos

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.
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

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).Mechanisms of Genetic VariationThe original sources of genetic variation are mutations,...
Genetic Drift03:33

Genetic Drift

Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.Life is not fair. A deer grazing contentedly in a field can have her meal cut tragically short by a bolt of lightning. If the doomed doe is one of only three in the population, 1/3 of the population’s gene pool is lost. Random events like this can...
Gene Conversion02:08

Gene Conversion

Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
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...

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Related Experiment Video

Updated: Jul 14, 2026

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
10:17

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations

Published on: November 3, 2010

Specificity of gene regulation.

Beverly M Emerson1

  • 1Salk Institute, Regulatory Biology Laboratory, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. emerson@salk.edu

Cell
|May 23, 2002
PubMed
Summary

Genome regulation relies on precise gene specificity, achieved through complex nuclear mechanisms and networks. These intricate systems ensure coordinated gene expression for physiological functions.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • Physiologically coordinated genome expression is essential for cellular function.
  • Gene specificity is a critical aspect of this regulation.
  • The nucleus employs diverse mechanisms for gene regulation.

Purpose of the Study:

  • To highlight recent advances in understanding genome regulation.
  • To emphasize the complexity of gene specificity mechanisms.
  • To outline the multi-level operation of nuclear networks.

Main Methods:

  • Review of recent scientific literature.
  • Analysis of emerging data on nuclear gene regulation.
  • Synthesis of information on diverse regulatory mechanisms.

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Following the Dynamics of Structural Variants in Experimentally Evolved Populations
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Following the Dynamics of Structural Variants in Experimentally Evolved Populations

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Related Experiment Videos

Last Updated: Jul 14, 2026

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
10:17

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations

Published on: November 3, 2010

Functional Assessment of BRCA1 variants using CRISPR-Mediated Base Editors
09:22

Functional Assessment of BRCA1 variants using CRISPR-Mediated Base Editors

Published on: February 28, 2021

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
04:52

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

Main Results:

  • Genome regulation involves sophisticated control of gene specificity.
  • Multiple mechanisms and networks contribute to this regulation.
  • These processes operate at distinct levels within the nucleus.

Conclusions:

  • The nucleus utilizes a complex interplay of mechanisms for precise gene regulation.
  • Understanding these networks is key to comprehending genome function.
  • Recent advances reveal the intricate nature of gene specificity control.