Males with XXY chromosomes suffer from:
Correct answer: A. Klinefelter's Syndrome
- A. Klinefelter's Syndrome
- B. Down's Syndrome
- C. Jacob's Syndrome
- D. Edward's Syndrome
Explanation
Explanation:XXY chromosomes in a male cause Klinefelter's syndrome.This option is not correct. Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21, leading to characteristic physical features and intellectual disability.This option is also incorrect. Jacob's syndrome, also known as XYY syndrome, is a genetic disorder in which males have an extra Y chromosome, resulting in a karyotype of 47, XYY.This option is also incorrect. Edward's syndrome, also known as trisomy 18, is a genetic disorder caused by the presence of an extra copy of chromosome 18. It is associated with severe developmental abnormalities and a high rate of infant mortality.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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