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Related Concept Videos

Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

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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.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
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Chromosomal Theory of Inheritance01:39

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In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”
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The Evidence for Evolution02:55

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Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
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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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Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm⁠—such as chloroplasts and mitochondria⁠—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
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Inheritance01:25

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Gregor Mendel's pioneering work on the principles of inheritance fundamentally transformed our understanding of how traits are transmitted from generation to generation. His experiments with pea plants laid the groundwork for the discovery of genes, discrete units within organisms that control heredity.
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Related Experiment Video

Updated: Jan 22, 2026

Implementing Dynamic Clamp with Synaptic and Artificial Conductances in Mouse Retinal Ganglion Cells
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Inherited Retinal Disorders: Using Evidence as a Driver for Implementation.

Panagiotis I Sergouniotis1,2,3

  • 1Division of Evolution and Genomic Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom, panagiotis.sergouniotis@manchester.ac.uk.

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|July 8, 2019
PubMed
Summary
This summary is machine-generated.

Integrating advances in retinal genetics into healthcare requires demonstrating clinical utility. Overcoming challenges in rare disease research needs efficient study designs and international collaboration for effective gene-based therapies.

Keywords:
Clinical utilityEvidence-based medicineGenomic medicineImplementation scienceInherited retinal diseaseRare eye disease

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Area of Science:

  • Ophthalmology
  • Genetics
  • Medical Implementation Science

Background:

  • Advances in retinal genetics have improved understanding and treatments for inherited retinal disorders.
  • Despite progress, integrating genetic diagnostics and therapies into routine healthcare remains challenging.
  • Demonstrating clinical utility is crucial for adopting genetic interventions in patient care.

Purpose of the Study:

  • To summarize current obstacles in implementing genetic interventions for inherited retinal disorders.
  • To discuss strategies for overcoming these barriers and accelerating clinical adoption.

Main Methods:

  • Literature review and synthesis of current challenges and proposed solutions in the field of retinal genetics implementation.
  • Analysis of the requirements for generating robust evidence of benefit for rare disease interventions.

Main Results:

  • Accruing evidence of clinical utility for rare inherited retinal disorders is difficult due to the need for large, powered studies.
  • Efficient study designs and international collaboration are essential for overcoming research challenges.
  • Consistent and precise capture of phenotypic and natural history data is critical.

Conclusions:

  • Effective implementation of genetic advances in retinal disorders requires overcoming significant evidence-generation hurdles.
  • Strategies include efficient study designs, global collaboration, and standardized data collection.
  • Accelerating the integration of genetic diagnostics and therapies into clinical practice is achievable with focused efforts.