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There are many different types of chromosome abnormalities that require clinical care by a physician or other healthcare professional. Listed in the directory below are some, for which we have provided a brief overview.
Overview of Chromosome Abnormalities
Types of Chromosome Abnormalities
Numerical Abnormalities: Overview of Trisomies and Monosomies
Down Syndrome
Trisomy 18 & 13
Turner Syndrome
Structural Abnormalities: Deletions (Cri du Chat) and Duplications (Pallister Killian)
Translocations
Translocation Down Syndrome
Other Arrangements: Rings and Inversions
Mosaicism
Mosaic Down Syndrome
How Chromosome Abnormalities Happen: Meiosis, Mitosis, Maternal Age, Environment
Chance a Chromosome Abnormality Will Occur Again: Numerical, Structural (Inherited and De Novo), Mosaicism
