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Chromosome X: General Features

  1. Matthew J Wakefield,
  2. Jennifer AM Graves

Published Online: 27 JAN 2006

DOI: 10.1038/npg.els.0005794



How to Cite

Wakefield, M. J. and Graves, J. A. 2006. Chromosome X: General Features. eLS. .

Author Information

  1. The Australian National University, Canberra, Australia

Publication History

  1. Published Online: 27 JAN 2006


The X chromosome is the larger of the pair of chromosomes that determine sex in mammals. It is present in two copies in females, while one copy pairs with the sex determining Y chromosome in males.


  • X chromosome