Moderate

During maternal mitosis, nondisjunction of autosomal chromosome pair results in the formation of an egg having 24 chromosomes in:

Correct answer: B. Down's Syndrome

  • A. Klinefelter's Syndrome
  • B. Down's Syndrome
  • C. Turner's Syndrome
  • D. Jacob's Syndrome

Explanation

Down's Syndrome involves a child receiving an extra copy of their 21st chromosome.Klinefelter's syndrome is a genetic disorder that occurs in males and is characterized by the presence of an extra X chromosome, resulting in a chromosomal configuration of XXY.Down syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of an extra copy of chromosome 21 Turner's syndrome, also known as monosomy X, is a genetic disorder that affects females. It occurs when one of the sex chromosomes is missing or partially missing, resulting in a chromosomal configuration of X0.Jacob's syndrome, also known as XYY syndrome, is a genetic condition that affects males. It is caused by the presence of an extra Y chromosome, resulting in a chromosomal configuration of XYY.

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About Chromosomes

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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