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An image showing chromosomes ordered by size and position of centromere.
Number, sex, additional/missing and structural rearrangements
The sequence of a karyogram report
DNA lost from the middle of a chromosome
DNA lost from the end of a chromosome
A condition caused by multiple chromosome breaks, due to defect in DNA repair genes
Where the chromosome number is a multiple of the haploid number (n), e.g. triploidy: 3n
Where the chromosome number is not a multiple of the haploid number (n), e.g. trisomy: 2n+1 = 47
Failure of separation of homologous chromosome pairs, occurring during anaphase
A syndrome caused by trisomy of chromosome 13
A syndrome caused by trisomy of chromosome 18
A syndrome caused by trisomy of chromosome 21
... are more likely to undergo non-dysjunction
Smaller chromosomes ...
The short arm (top arm) of a chromosome
The long arm (bottom arm) of a chromosome
The central component of a chromosome where the arms meet