ullrich-turner syndrome

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Definition of ullrich-turner syndrome in English English dictionary

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Ullrich-Turner syndrome

Turner syndrome or Ullrich-Turner syndrome (also known as "Gonadal dysgenesis") encompasses several conditions in human females, of which monosomy X (absence of an entire sex chromosome, the Barr body) is most common. It is a chromosomal abnormality in which all or part of one of the sex chromosomes is absent (unaffected humans have 46 chromosomes, of which two are sex chromosomes). Normal females have two X chromosomes, but in Turner syndrome, one of those sex chromosomes is missing or has other abnormalities. In some cases, the chromosome is missing in some cells but not others, a condition referred to as mosaicism or 'Turner mosaicism'

Hyphenation

ullrich-turner syn-drome