Search Results 1-10 of 28103 for Chromosome

  1. Turner syndrome - Symptoms & causes - Mayo Clinic

    X chromosome changes. Changed or missing parts of one of the X chromosomes can occur. Cells have one complete and one altered copy. This error can occur in the ...

  2. Triple X syndrome - Symptoms & causes - Mayo Clinic

    Females normally have two X chromosomes in all cells — one X chromosome from each parent. In triple X syndrome, a female has three X chromosomes. Many girls ...

  3. Down syndrome - Symptoms and causes - Mayo Clinic

    Down syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21.

  4. Klinefelter syndrome - Symptoms and causes - Mayo Clinic

    ... chromosome. It isn't an inherited condition. Humans have 46 chromosomes, including two sex chromosomes that determine a person's sex. Females have two X sex ...

  5. Not the end of the road: Delivering the diagnosis of sex-chromosome trisomy

    Trisomy is usually caused by a genetic mutation. Most people have either XY or XX sex chromosomes. Individuals with sex-chromosome trisomy can have XXX (known ...

  6. Chronic myelogenous leukemia - Symptoms and causes - Mayo Clinic

    In people with chronic myelogenous leukemia, the chromosomes in the blood cells swap sections with each other. A section of chromosome 9 switches places with a ...

  7. Mayo Clinic launches first-in-world mate-pair sequencing test that locates "breakpoints" of chromosome rearrangements

    This novel chromosome test finds the “breaks” in gene rearrangements that other tests can't. ROCHESTER, Minn. — Mayo Clinic has launched a first-of-its-kind ...

  8. Science Saturday: Study suggests chromosomal errors may hinder some aggressive tumors

    In a research study published recently in Cell Reports Medicine, Mayo Clinic molecular and cancer cell biologist Veronica Rodriguez-Bravo, Ph.D., and her team ...

  9. Cytogenetics Laboratory - Laboratory Medicine and Pathology - Mayo Clinic

    Chromosome disorders form a major category of genetic disease. In a clinical setting, chromosome abnormalities account for a large proportion of patients ...

  10. DiGeorge syndrome (22q11.2 deletion syndrome) - Symptoms and causes - Mayo Clinic

    This condition is due to missing part of chromosome 22. It may cause heart issues, thyroid problems, cleft palate, lower immunity and other health problems.