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Single Gene Defects

There are many different single gene defects 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.

If you cannot find the information in which you are interested, please visit the Medical Genetics Online Resources page in this Web site for an Internet/World Wide Web address that may contain additional information on that topic.

Overview of Single Gene Defects

Autosomal Dominant: Myotonic Dystrophy

Autosomal Recessive: Cystic Fibrosis, Sickle Cell Anemia, Tay Sachs Disease

X-linked Recessive: Red-Green Color Blindness, Hemophilia A

X-linked Dominant: Incontinentia Pigmenti

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Overview of Birth Defects

Chromosome Abnormalities

Single Gene Defects

The Difference Between a Chromosome Abnormality and a Single Gene Defect

Multifactorial Inheritance

Teratogens

Non-Traditional Inheritance

Evaluating a Child for Birth Defects

Testing for Birth Defects

Uses of Genetic Testing

Genetic Services: When, Where, How

Identification, Treatment, and Prevention of Birth Defects

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