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Comparative Study
. 1988;31(2):73-4.

Twofold CuZnSOD activity suggesting homozygous submicroscopic duplication of chromosome 21 in the orangutan

Affiliations
  • PMID: 2969695
Comparative Study

Twofold CuZnSOD activity suggesting homozygous submicroscopic duplication of chromosome 21 in the orangutan

J de Grouchy et al. Ann Genet. 1988.

Abstract

A twofold CuZnSOD activity was observed in an orangutan as compared to man and a chimpanzee. This suggests that a submicroscopic duplication of chromosome 21 (similar to those demonstrated in patients with the trisomy 21 phenotype but with a normal karyotype) has occurred in the homozygous state during evolution of the orangutan phylum. Such duplications could be important evolutionary mechanisms, together with visible chromosome rearrangements and classical gene mutations.

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