page_title: Pseudoautosomal region
hierarchical_section_title: Pseudoautosomal region
caption_attribution_description: English: Detail of a human metaphase spread. A region in the pseudoautosomal region of the short arms of the X- and Y-chromosome (PAR1) was detected by fluorescence in situ hybridizaton (green). Chromosomes counterstained in red. Deutsch: Ausschnitt aus einer menschlichen Metaphase-Spreitung. Eine Region in der pseudoautosomalen Region auf den kurzen Armen des X- und des Y-Chromosoms wurde mit Fluoreszenz-in-situ-Hybridisierung nachgewiesen (grüne Doppelpunkte, je ein Punkt pro Chromatid). Chromosomen sind rot dargestellt.
context_page_description: The pseudoautosomal regions, PAR1, PAR2, are homologous sequences of nucleotides on the X and Y chromosomes.
  The pseudoautosomal regions get their name because any genes within them are inherited just like any autosomal genes. PAR1 comprises 2.6 Mbp of the short-arm tips of both X and Y chromosomes in humans and great apes. PAR2 is at the tips of the long arms, spanning 320 kbp.
context_section_description: The pseudoautosomal regions, PAR1, PAR2, are homologous sequences of nucleotides on the X and Y chromosomes.
  The pseudoautosomal regions get their name because any genes within them (so far at least 29 have been found) are inherited just like any autosomal genes. PAR1 comprises 2.6 Mbp of the short-arm tips of both X and Y chromosomes in humans and great apes (X and Y are 155 Mbp and 59 Mbp in total). PAR2 is at the tips of the long arms, spanning 320 kbp.
caption: Detail of a human metaphase spread. A region in the pseudoautosomal region of the short arms of the X chromosome (left) and the Y chromosome (top right) was detected by fluorescent in situ hybridization (green). Chromosomes counterstained in red.
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