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Related Concept Videos

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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Updated: Apr 15, 2026

A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
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Common genetic and epigenetic syndromes.

Darius J Adams1, David A Clark2

  • 1Atlantic Health System, Morristown, NJ, USA; Albany Medical Center, Albany, NY, USA.

Pediatric Clinics of North America
|April 4, 2015
PubMed
Summary

Cytogenetic anomalies are crucial in individuals with multiple congenital anomalies. Early identification of genetic syndromes like Prader-Willi and Angelman syndromes enables timely intervention, maximizing developmental potential.

Keywords:
EpigeneticGeneticImprintingMicrodeletionSyndrome

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Area of Science:

  • Medical Genetics
  • Developmental Pediatrics

Background:

  • Cytogenetic anomalies are frequently observed in individuals presenting with multiple congenital anomalies.
  • Genetic syndromes, though often rare, significantly impact clinical outcomes and development.

Purpose of the Study:

  • To review common genetic syndromes and emphasize the importance of considering cytogenetic anomalies in diagnosis.
  • To highlight the role of specific diagnostic tests in identifying key genetic conditions.

Main Methods:

  • Review of literature on common genetic syndromes and diagnostic approaches.
  • Discussion of the utility of DNA methylation analysis for specific conditions.

Main Results:

  • DNA methylation analysis is identified as the most sensitive initial test for Prader-Willi and Angelman syndromes.
  • Timely diagnosis of cytogenetic anomalies facilitates prompt initiation of early intervention services.

Conclusions:

  • Considering cytogenetic anomalies is essential for individuals with multiple congenital anomalies.
  • Early and accurate diagnosis of genetic syndromes improves long-term outcomes and developmental trajectories through timely interventions.