The sex chromosome complement in individuals with Klinefelter's syndrome is:
Correct answer: A. XXY
- A. XXY
- B. XXYY
- C. XYYY
- D. Xy
Explanation
In Klinefelter syndrome, individuals typically have an extra X chromosome, resulting in a genotype of XXY instead of the usual XY in males. Therefore, the sex chromosome complement in Klinefelter syndrome is XXY. This condition usually leads to various physical and developmental differences, including infertility, reduced testosterone levels, and sometimes learning and behavioral challenges.
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