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Normal karyotype and Klinefelter syndrome
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Normal karyotype and Klinefelter syndrome

The normal karyotype of a male contains 22 pairs of autosomes and 1 pair of sex chromosomes (XY), so his karyotype is 46, XY. However, a man suffering from Klinefelter's syndrome will have an altered karyotype, as these men have an extra X chromosome. Thus, the karyotype of a male with Klinefelter syndrome will be 47, XXY.

Klinefelter syndrome is a genetic disorder that causes a lower concentration of testosterone, which prevents the production of sperm. Therefore, this syndrome is considered a cause of male infertility.

By (gynecologist), (embryologist), (gynecologist), (embryologist) and (biochemist).
Last Update: 07/26/2022