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Principles of Inheritance and Variation

44A + XXY chromosome compliment occurs in
A. Down syndrome
B. Turner syndrome
C. Klinefelter's syndrome
D. Bleeders syndrome

C. Klinefelter's syndrome

Klinefelter’s syndrome is caused by the presence of an additional copy of X-chromosomes, resulting in the karyotype of 44+XXY.
Sex of the individual is masculine but possess feminine characters.
Gynaecomastia i.e., development of breasts.
Poor beard growth and often sterile.
Feminine pitched voice

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