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  2. List of genetic disorders - Wikipedia

    en.wikipedia.org/wiki/List_of_genetic_disorders

    Dup - Duplication of a gene or genes. C – Whole chromosome extra, missing, or both (see chromosome abnormality) T – Trinucleotide repeat disorders: gene is extended in length. A cherry red spot, which can be a feature of several storage disorders, including Tay–Sachs disease. Disorder. Chromosome. Mutation.

  3. Genetic disorder - Wikipedia

    en.wikipedia.org/wiki/Genetic_disorder

    A genetic disorder is a health problem caused by one or more abnormalities in the genome. It can be caused by a mutation in a single gene (monogenic) or multiple genes (polygenic) or by a chromosome abnormality. Although polygenic disorders are the most common, the term is mostly used when discussing disorders with a single genetic cause ...

  4. Hereditary cancer syndrome - Wikipedia

    en.wikipedia.org/wiki/Hereditary_cancer_syndrome

    Familial adenomatous polyposis is a cancer syndrome in which there are hundreds to thousands of benign adenomas in the colon.. A hereditary cancer syndrome (familial/family cancer syndrome, inherited cancer syndrome, cancer predisposition syndrome, cancer syndrome, etc.) is a genetic disorder in which inherited genetic mutations in one or more genes predispose the affected individuals to the ...

  5. Hereditary pancreatitis - Wikipedia

    en.wikipedia.org/wiki/Hereditary_pancreatitis

    Hereditary pancreatitis (HP) is an inflammation of the pancreas due to genetic causes. It was first described in 1952 by Comfort and Steinberg [1] but it was not until 1996 that Whitcomb et al[2] isolated the first responsible mutation in the trypsinogen gene (PRSS1) on the long arm of chromosome seven (7q35). The term "hereditary pancreatitis ...

  6. Genetic counseling - Wikipedia

    en.wikipedia.org/wiki/Genetic_counseling

    A genetic counsellor discussing a pedigree with a client. Genetic counseling is the process of investigating individuals and families affected by or at risk of genetic disorders to help them understand and adapt to the medical, psychological and familial implications of genetic contributions to disease. This field is considered necessary for ...

  7. Haemophilia in European royalty - Wikipedia

    en.wikipedia.org/wiki/Haemophilia_in_European...

    Using genetic analysis of the remains of the assassinated Romanov dynasty, and specifically Tsarevich Alexei, Rogaev et al. were able to determine that the "Royal Disease" is actually haemophilia B. Specifically, they found a single- nucleotide change in the gene for clotting Factor IX that causes incorrect RNA splicing and produces a truncated ...

  8. Familial adenomatous polyposis - Wikipedia

    en.wikipedia.org/wiki/Familial_adenomatous_polyposis

    1 in 10,000 - 15,000. Familial adenomatous polyposis (FAP) is an autosomal dominant inherited condition in which numerous adenomatous polyps form mainly in the epithelium of the large intestine. While these polyps start out benign, malignant transformation into colon cancer occurs when they are left untreated. Three variants are known to exist ...

  9. Hereditary nonpolyposis colorectal cancer - Wikipedia

    en.wikipedia.org/wiki/Hereditary_nonpolyposis...

    Hereditary nonpolyposis colorectal cancer (HNPCC) is a hereditary predisposition to colon cancer.. HNPCC includes (and was once synonymous with) [1] Lynch syndrome, an autosomal dominant genetic condition that is associated with a high risk of colon cancer, endometrial cancer (second most common), ovary, stomach, small intestine, hepatobiliary tract, upper urinary tract, brain, and skin. [2]