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Updated: Jun 25, 2026

FISH for Pre-implantation Genetic Diagnosis
Published on: February 24, 2011
Homozygosity for inversion (2)(p12q14)
Z Gelman-Kohan1, J Rosensaft, R N Ben-Cohen
1Clinical Genetics Unit, Kaplan Hospital, Rehovot, Israel.
This study reports the first known cases of homozygosity for the inv2(p12q14) chromosomal inversion in two healthy siblings. Researchers seek information on any other individuals with this genetic condition.
Area of Science:
- Human Genetics
- Cytogenetics
- Molecular Biology
Background:
- Chromosomal inversions are structural variations that can impact gene regulation and individual health.
- Homozygosity for inversions is typically rare and may be associated with developmental issues.
Purpose of the Study:
- To report the first documented cases of healthy individuals who are homozygous for the inv2(p12q14) inversion.
- To gather information on other potential cases of inv2(p12q14) homozygosity.
Main Methods:
- Case report of two healthy siblings.
- Karyotyping or other cytogenetic analysis to confirm the inversion.
- Genetic counseling and family history assessment.
Main Results:
- Two healthy adult siblings were identified as homozygotes for the inv2(p12q14) inversion.
- No apparent adverse health effects were observed in the homozygous individuals.
Conclusions:
- The inv2(p12q14) inversion can be present in a homozygous state in healthy individuals.
- Further investigation and case reporting are needed to understand the full implications of this inversion.
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