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Principles of Inheritance and Variation
Chromosomal Disorders – Klinefelter's Syndrome
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All Questions
2023 1 question
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Which of the following statements are correct about Klinefelter's Syndrome? A. This disorder was first described by Langdon Down (1866). B. Such an individual has overall masculine development. However, the feminine development is also expressed. C. The affected individual is short stature. D. Physical, psychomotor and mental development is retarded. E. Such individuals are sterile. Choose the correct answer from the options given below:
Klinefelter's individuals (47, XXY) are masculine with some feminine development and are sterile.
Klinefelter's Syndrome is a genetic disorder that is caused due to the presence of an additional copy of X chromosome resulting into a karyotype of $47, XXY$. Such an individual has overall masculine development, however, the feminine development (development of breast, i.e., gynaecomastia) is also expressed. Such individuals are sterile. Down syndrome was first described by Langdon Down (1866). In this disorder the affected individual is physically, psychomotorly and mentally retarded.
2019 1 question
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What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile?