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Related Concept Videos

Epigenetic Regulation01:37

Epigenetic Regulation

3.1K
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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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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Genomic Imprinting and Inheritance02:30

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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.
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Gene-Environment Interactions01:20

Gene-Environment Interactions

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Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
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Inheritance of Chromatin Structures03:17

Inheritance of Chromatin Structures

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Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
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Epistasis Analysis01:09

Epistasis Analysis

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Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...
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Related Experiment Video

Updated: Jul 27, 2025

Methylated DNA Immunoprecipitation
21:24

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How epigenetics impacts on human diseases.

Antonella Farsetti1, Barbara Illi2, Carlo Gaetano3

  • 1Istituto di analisi dei sistemi ed informatica "Antonio Ruberti" (IASI), Consiglio Nazionale delle Ricerche (CNR), Via dei Taurini, 19 - 00185 Roma, Italy.

European Journal of Internal Medicine
|June 5, 2023
PubMed
Summary
This summary is machine-generated.

Epigenetics studies gene expression changes without altering DNA sequence, influenced by environment and lifestyle. These modifications offer therapeutic potential but require careful study to ensure safety and efficacy.

Keywords:
ChromatinChronic diseaseDNAEpigenetic enzymeEpigeneticsHATHDACHistoneRNA

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Area of Science:

  • Biology
  • Genetics
  • Molecular Biology

Background:

  • Epigenetics involves chemical modifications to DNA and proteins, affecting gene expression.
  • These mechanisms influence cell differentiation, development, and disease susceptibility.
  • Environmental and lifestyle factors play a role in epigenetic changes and phenotype transmission.

Purpose of the Study:

  • To provide a synthetic and historical overview of epigenetics.
  • To highlight key achievements in the field.
  • To discuss the implications of epigenetics in health and disease.

Main Methods:

  • Review of historical and recent scientific literature.
  • Synthesis of key epigenetic concepts and discoveries.
  • Analysis of the role of epigenetics in various diseases.

Main Results:

  • Epigenetic modifications are crucial for understanding gene expression regulation.
  • Epigenetics links environmental factors to health, disease, and intergenerational phenotypes.
  • Epigenetic changes are implicated in cardiovascular disease, cancer, and neurological disorders.

Conclusions:

  • Epigenetic modifications are potentially reversible, offering therapeutic targets.
  • Epigenetic modulators present new avenues for disease treatment and diagnosis.
  • Further research is essential to ensure the safety and efficacy of epigenetic interventions.