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(B) Klinefelter's syndrome is a genetic disorder caused by the presence of an additional $X$ chromosome,resulting in a karyotype of $47, XXY$.Individu

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Klinefelter's syndrome

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(B) Klinefelter's syndrome is a genetic disorder caused by the presence of an additional $X$ chromosome,resulting in a karyotype of $47, XXY$.Individuals with this condition exhibit overall masculine development but also show feminine characteristics such as gynaecomastia (development of breast tissue).These individuals are sterile due to the inability to produce functional sperm.In contrast,Turner's syndrome $(45, XO)$ involves a missing $X$ chromosome in females,while Down's syndrome $(47, XX/XY + 21)$ is a trisomy of chromosome $21$.

What is the genetic disorder in which an individual has an overall masculine development,gynaecomastia,and is sterile?

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