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n. - Chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number.

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Usage examples (8)
  • Here one pair is represented by one chromosome, this is called monosomy (Turner syndrome = one X and absent Y chromosome).
  • The most common abnormality is monosomy of chromosome 22.
  • These will result in monosomy or trisomy, and these will usually not come to term.
  • monosomy X, called Turner syndrome, occurs about once in every 5000 births and is the only known viable monosomy in humans.
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