Syndrome which is characterized by 2X chromosomes and 1Y chromosome is_____________?

Correct answer: A. Kleinfelters syndrome

  • A. Kleinfelters syndrome
  • B. Down syndrome
  • C. Turner syndrome
  • D. Marfan 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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