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Explain the causes responsible in a …

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Explain the causes responsible in a human to have *** chromosomes as XXY instead of XX or XY
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Meghna Thapar 5 years, 5 months ago

Klinefelter syndrome. Klinefelter syndrome (sometimes called Klinefelter's, KS or XXY) is where boys and men are born with an extra X chromosome. Chromosomes are packages of genes found in every cell in the body. There are 2 types of chromosome, called the *** chromosomes, that determine the genetic *** of a baby. 

Females have two X *** chromosomes (XX). ... One extra copy of the X chromosome in each cell (XXY), the most common cause. An extra X chromosome in some of the cells (mosaic Klinefelter syndrome), with fewer symptoms. More than one extra copy of the X chromosome, which is rare and results in a severe form.

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