Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
Mammal with four cell chromosomes
Mammals are diploid, that is, we have all chromosomes repeated twice in all cells. Otherwise, it is usually a harmful genetic mutation, such as polyploidia, the trisomy of the human chromosome 21. Researchers have discovered the exception of this genetic standard: Tympanoctomys Barrerae.
The small rodent of the Argentine desert is a tetraploid with four repetitions of chromosomes. The researchers do not know the causes of this peculiarity.
Buletina
Bidali zure helbide elektronikoa eta jaso asteroko buletina zure sarrera-ontzian