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A boy with an extra X chromosome probably has which of the following syndromes? a. down syndrome. b. klinefelter syndrome. c. xxx syndrom

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The answer is the b one
User Lamell
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A boy with an extra X chromosomes probably has Klinefelter syndrome.

Klinefetler syndrome often results in loss of male secondary sex characteristics or it may results in development of female sex characteristics .


User Marius Schulz
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