File:Meiosis II Non Disjunction.jpg

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Meiosis_II_Non_Disjunction.jpg ‎(453 × 538 pixels, file size: 105 KB, MIME type: image/jpeg)

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Description This diagram shows the chromosomal nondisjunction in the father that can result in XYY syndrome in his son. The two X chromosomes separate correctly (one per sperm cell), but the shorter Y chromosomes do not separate, which results in one cell with two chromosomes, and one cell with zero chromosomes. The sperm cells containing one X chromosome would produce healthy daughters. The sperm cell containing two Y chromosomes would produce a son with XYY syndrome. The sperm cell with no sex chromosome might produce a daughter with Turner syndrome (monosomy X).
Date 11 October 2005 (original upload date)
Source No machine-readable source provided. Own work assumed (based on copyright claims).
Author No machine-readable author provided. Dracocephalus~commonswiki assumed (based on copyright claims).

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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Date/TimeThumbnailDimensionsUserComment
current12:17, 12 October 2005Thumbnail for version as of 12:17, 12 October 2005453 × 538 (105 KB)Dracocephalus~commonswiki (talk | contribs)
22:06, 11 October 2005Thumbnail for version as of 22:06, 11 October 2005425 × 505 (64 KB)Dracocephalus~commonswiki (talk | contribs)Dracocephalus

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