Klinefelter's syndrome karyotype 47,XXY

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Klinefelter's syndrome karyotype 47,XXY. Wessex Reg. Genetics Centre. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.

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Klinefelter's syndrome 47,XXY. This male has an extra X chromosome. Symptoms include deficiency of male hormones and underdeveloped secondary male characteristics, breast enlargement, small testes, infertility due to lack of sperm, and various psychopathological disorders.

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