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Cytogenetics

Definition
AI-generated

Study of chromosome number, structure, and segregation—classically via karyotyping and microscopy, now complemented by sequencing.

Topics

Why it matters in GWAS

These concepts shape how we expect variants to act (penetrance, heterogeneity, threshold models) and how GWAS signals should be interpreted alongside family-based evidence.

Example usage

"Cytogenetics confirmed a structural rearrangement that explained the outlier expression profile."

References

  • Griffiths AJF, et al. (2015). An Introduction to Genetic Analysis. W. H. Freeman.

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