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  2. Tetrasomy - Wikipedia

    en.wikipedia.org/wiki/Tetrasomy

    Full tetrasomy of an individual occurs due to non-disjunction when the cells are dividing (meiosis I or II) to form egg and sperm cells (gametogenesis). This can result in extra chromosomes in a sperm or egg cell. After fertilization, the resulting fetus has 48 chromosomes instead of the typical 46.

  3. Triploid syndrome - Wikipedia

    en.wikipedia.org/wiki/Triploid_syndrome

    Triploid syndrome, also called triploidy, is a chromosomal disorder in which a fetus has three copies of every chromosome instead of the normal two. If this occurs in only some cells, it is called mosaic triploidy and is less severe.

  4. Chromosomal translocation - Wikipedia

    en.wikipedia.org/wiki/Chromosomal_translocation

    The former results in a chromosomal abnormality featured in all cells of the offspring, as in translocation carriers. Somatic translocations, on the other hand, result in abnormalities featured only in the affected cell and its progenitors, as in chronic myelogenous leukemia with the Philadelphia chromosome translocation.

  5. 18p- - Wikipedia

    en.wikipedia.org/wiki/18p-

    Typically, peripheral blood karyotype analysis is used, and can also come from trophoblast cells or amniocytes during the perinatal stage. Different syndromes, like Turner syndrome or trisomy 21, may be associated with 18p deletion. Deletion 18p syndrome has no specific treatment but is often treated with speech therapy and physical therapy for ...

  6. Burkitt lymphoma - Wikipedia

    en.wikipedia.org/wiki/Burkitt_lymphoma

    Burkitt lymphoma is a cancer of the lymphatic system, particularly B lymphocytes found in the germinal center.It is named after Denis Parsons Burkitt, the Irish surgeon who first described the disease in 1958 while working in equatorial Africa.

  7. Cancer cell - Wikipedia

    en.wikipedia.org/wiki/Cancer_cell

    Cancer cells are cells that divide continually, forming solid tumors or flooding the blood or lymph with abnormal cells. Cell division is a normal process used by the body for growth and repair. A parent cell divides to form two daughter cells, and these daughter cells are used to build new tissue or to replace cells that have died because of ...

  8. Fragile X syndrome - Wikipedia

    en.wikipedia.org/wiki/Fragile_X_syndrome

    Fragile X syndrome (FXS) is a genetic disorder characterized by mild-to-moderate intellectual disability. [1] The average IQ in males with FXS is under 55, while about two thirds of affected females are intellectually disabled.

  9. Devil facial tumour disease - Wikipedia

    en.wikipedia.org/wiki/Devil_facial_tumour_disease

    Severe genetic abnormalities exist in cancer cells—for example, DFT2 cells are tetraploid, containing twice as much genetic material as normal cells. DFTD is most often spread by bites, when teeth come into contact with cancer cells; less important pathways of transmission are ingesting of infected carcasses and sharing of food.