Syndrome which is characterized by 2X chromosomes and 1Y chromosome is_____________?
Correct answer: D. Kleinfelters syndrome
- A. Marfan syndrome
- B. Down syndrome
- C. Turner syndrome
- D. Kleinfelters syndrome
Explanation
Klinefelter syndrome has a 47,XXY karyotype, giving a male two X chromosomes and one Y chromosome. Turner syndrome is 45,X, while Down syndrome is usually trisomy 21.
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