Turner syndrome

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Turner syndrome or Ullrich-Turner syndrome (also known as "Gonadal dysgenesis" encompasses several conditions, of which monosomy X (absence of an entire sex chromosome) is most common. It is a chromosomal disorder in which all or part of one of the sex chromosomes is absent (unaffected humans have 46 chromosomes, of which 2 are sex chromosomes). Typical females have 2 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'.

Pagina's: 68, Paperback, Betascript Publishers