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Which one of the following conditions indicates Klinefelter's syndrome?
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The correct answer is:
44 + XXY
Sex determining mechanism in human is of XY type. Out of 23 pairs of chromosome present, 22 pairs are exactly same in male and females, these are called as autosomes. Two X chromosomes are present in the females, whereas the presence of an X and Y chromosome are determinants of male characteristics.
44 + XO - Turner's syndrome, 44 + XY - Normal human male, 44 + XX - Normal human female
44 + XO - Turner's syndrome, 44 + XY - Normal human male, 44 + XX - Normal human female
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