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31: Chromosomal Aneuploidies

Last updated

Aug 12, 2024
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- 30.6: Chapter Summary
- 31.1: Introduction

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31.1: Introduction
31.2: Chromosomal Basis of Inherited Disorders
The number, size, shape, and banding pattern of chromosomes make them easily identifiable in a karyogram and allows for the assessment of many chromosomal abnormalities. Disorders in chromosome number, or aneuploidies, are typically lethal to the embryo, although a few trisomic genotypes are viable. Because of X inactivation, aberrations in sex chromosomes typically have milder phenotypic effects. Aneuploidies also include instances in which segments of a chromosome are duplicated or deleted.
31.3: Aneuploidy
31.4: Chromosomal Rearrangements
31.6: Key Terms
31.7: Chapter Summary

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