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The Klinefelter's syndrome has chromosom...

The Klinefelter's syndrome has chromosomal constituent -

A

2A + XX

B

2A + XXY

C

2A + Y

D

2A-XY

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**Step-by-Step Solution:** 1. **Understanding Klinefelter Syndrome**: Klinefelter syndrome is a genetic condition that affects males and is characterized by the presence of an extra X chromosome. 2. **Normal Male Chromosomal Composition**: A typical male has a chromosomal composition of 46 chromosomes, which includes 44 autosomes (2A) and 1 pair of sex chromosomes (XY). 3. **Chromosomal Composition in Klinefelter Syndrome**: In Klinefelter syndrome, the chromosomal composition is altered. Instead of the normal XY, individuals with Klinefelter syndrome typically have an additional X chromosome, resulting in a composition of 47 chromosomes. 4. **Final Chromosomal Composition**: Therefore, the chromosomal composition for Klinefelter syndrome is 47,XXY. This means there are two X chromosomes and one Y chromosome. 5. **Conclusion**: The chromosomal constituent of Klinefelter syndrome is 47,XXY. ---
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