Encyclopedia of Parasitology

2016 Edition
| Editors: Heinz Mehlhorn

XX-XY Type

Reference work entry
DOI: https://doi.org/10.1007/978-3-662-43978-4_3527

This abbreviation describes the sex chromosome situation, when male individuals have a smaller second sex chromosome. This constellation is rather rare in nematodes, which often show the XO situation, where one chromosome is lacking (e.g., Strongyloides ratti).

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Institut für Zoomorphologie, Zellbiologie und ParasitologieHeinrich-Heine-UniversitätDüsseldorfGermany