Chromosomes 21 and 22 contain long stretches of repetitive DNA, which are unstable sites where rearrangements can occur. The sequencing of human chromosomes 21 and 22 showed that some regions of chromosomes do not code for proteins.

Julian F. Smith has written:

'Rearrangements of hydrazine derivatives' -- subject(s): Hydrazine, Hydrazones, Rearrangements (Chemistry)

Maurice Leon Cohn has written:

'Rearrangements of dimethylphenylmethyldichloroamine, dimethylphenylmethylmonochloroamine, and beta-dimethylphenylmethylhydroxylamine' -- subject(s): Methylamines, Rearrangements (Chemistry)

Charles Robert Ganz has written:

'Some rearrangements and photochemical transformations of cyclooctadienes' -- subject(s): Cyclooctadiene, Photochemistry, Rearrangements (Chemistry)

Transpositions