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  2. XXYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXYY_syndrome

    XXYY syndrome is a sex chromosome anomaly in which males have two extra chromosomes, one X and one Y chromosome. Human cells usually contain two sex chromosomes, one from the mother and one from the father. Usually, females have two X chromosomes (XX) and males have one X and one Y chromosome (XY). The appearance of at least one Y chromosome ...

  3. Klinefelter syndrome - Wikipedia

    en.wikipedia.org/wiki/Klinefelter_syndrome

    Klinefelter syndrome (KS), also known as 47,XXY, is a chromosome anomaly where a male has an extra X chromosome. [10] These complications commonly include infertility and small, poorly functioning testicles (if present). These symptoms are often noticed only at puberty, although this is one of the most common chromosomal disorders, occurring in ...

  4. XYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XYY_syndrome

    The syndrome is diagnosed in an increasing number of children prenatally by amniocentesis and chorionic villus sampling [24] in order to obtain a chromosome karyotype, where the abnormality can be observed. It is estimated that only 15–20% of children with 47,XYY syndrome are ever diagnosed. Of these, approximately 30% are diagnosed prenatally.

  5. Woman Adopts Rare Male Calico Cat With Unique XXY ... - AOL

    www.aol.com/lifestyle/woman-adopts-rare-male...

    Soon, the woman who adopted Josie began “questioning if this [Josie] was a female cat.”. When they took the feline to the vet, they informed them that the possibility was very low as “Calico ...

  6. XXXY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXXY_syndrome

    48,XXXY syndrome [1] XXXY syndrome is a genetic condition characterized by a sex chromosome aneuploidy, where individuals have two extra X chromosomes. [2] People in most cases have two sex chromosomes: an X and a Y or two X chromosomes. The presence of one Y chromosome with a functioning SRY gene causes the expression of genes that determine ...

  7. Comparison of YouTube downloaders - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_YouTube_down...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  8. List of most-subscribed YouTube channels - Wikipedia

    en.wikipedia.org/wiki/List_of_most-subscribed...

    American YouTube personality MrBeast is the most-subscribed channel on YouTube, with 327 million subscribers as of November 2024.. A subscriber to a channel on the American video-sharing platform YouTube is a user who has chosen to receive the channel's content by clicking on that channel's "Subscribe" button, and each user's subscription feed consists of videos published by channels to which ...

  9. List of most-viewed YouTube videos - Wikipedia

    en.wikipedia.org/wiki/List_of_most-viewed...

    Specifically, to count as a legitimate view, a user must intentionally initiate the playback of the video and play at least 30 seconds of the video (or the entire video for shorter videos). Additionally, while replays count as views, there is a limit of 4 or 5 views per IP address during a 24-hour period, after which point, no further views ...