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  2. Chromosome abnormality - Wikipedia

    en.wikipedia.org/wiki/Chromosome_abnormality

    [5] [6] Aneuploidy can be full, involving a whole chromosome missing or added, or partial, where only part of a chromosome is missing or added. [5] Aneuploidy can occur with sex chromosomes or autosomes. [citation needed] Rather than having monosomy, or only one copy, the majority of aneuploid people have trisomy, or three copies of one chromosome.

  3. Aneuploidy - Wikipedia

    en.wikipedia.org/wiki/Aneuploidy

    [3] [4] About 68% of human solid tumors are aneuploid. [4] Aneuploidy originates during cell division when the chromosomes do not separate properly between the two cells (nondisjunction). Most cases of aneuploidy in the autosomes result in miscarriage, and the most common extra autosomal chromosomes among live births are 21, 18 and 13. [5]

  4. 13q deletion syndrome - Wikipedia

    en.wikipedia.org/wiki/13q_deletion_syndrome

    Although rare, deletions involving chromosome 13q are among the most commonly observed monosomies [2] Chromosome 13, Partial Monosomy 13q appears to affect females slightly more frequently than males. Since the disorder was originally reported in 1963, more than 125 cases have been recorded in the medical literature. [2]

  5. Partial monosomy 13q - Wikipedia

    en.wikipedia.org/wiki/Partial_monosomy_13q

    Partial monosomy of chromosome 13q is a monosomy that results from the loss of all or part of the long arm of chromosome 13 in human beings. It is a rare genetic disorder which results in severe congenital abnormalities which are frequently fatal at an early age.

  6. Confined placental mosaicism - Wikipedia

    en.wikipedia.org/wiki/Confined_placental_mosaicism

    The common autosomal trisomies (21, 18, 13) made up a smaller number of cases of mosaicism detected on CVS, but were more often confirmed in fetal tissue (19%). [3] On the other hand, the uncommon autosomal trisomies accounted for a greater number of placental mosaicism cases, but were less often confirmed in fetal tissue (3.2%). [3]

  7. Chromosome 13 - Wikipedia

    en.wikipedia.org/wiki/Chromosome_13

    Other chromosomal conditions: Partial monosomy 13q is a rare chromosomal disorder that results when a piece of the long arm (q) of chromosome 13 is missing (monosomic). Infants born with partial monosomy 13q may exhibit low birth weight, malformations of the head and face (craniofacial region), skeletal abnormalities (especially of the hands ...

  8. Monosomy - Wikipedia

    en.wikipedia.org/wiki/Monosomy

    Turner syndrome is the only full monosomy that is seen in humans — all other cases of full monosomy are lethal and the individual will not survive development. Cri du chat syndrome – (French for "cry of the cat" after the persons' malformed larynx) a partial monosomy caused by a deletion of the end of the short arm of chromosome 5

  9. Chromosome instability - Wikipedia

    en.wikipedia.org/wiki/Chromosome_instability

    CIN often results in aneuploidy. There are three ways that aneuploidy can occur. It can occur due to loss of a whole chromosome, gain of a whole chromosome or rearrangement of partial chromosomes known as gross chromosomal rearrangements (GCR). All of these are hallmarks of some cancers. [13]