Question:
The karyotype of the Klinefelter's syndrome patient is
The karyotype of the Klinefelter's syndrome patient is
Updated On: Jun 21, 2022
- 44 + XXY
- 44 + XXX
- 44 + XO
- 44 + XYY
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The Correct Option is A
Solution and Explanation
Klinefelter's syndrome (Klinefelter, 1942) is due to trisomy of sex chromosome. It is formed by the union of an abnormal XX egg and a normal Y sperm or normal X egg and abnormal XY sperm. The individual has 47 chromosomes (44 + XXY). Such persons are sterile males (called feminised male) with undeveloped testes, mental retardation, female like sparse body hair, and knock knees, long limbs and with some female characteristics such as feminine pitched voice and enlarged breasts (gynaecomastia).
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Concepts Used:
Mendelian Disorders
Mendelian Disorder is a type of genetic disorder that is caused due to alterations in one gene or abnormalities in the genome. These disorders can be seen since birth and can be deduced using the Pedigree Analysis.
