[¦dəb·əl mī‚nyüt ′krō·mə‚sōmz] (genetics) Chromatin circles that vary in size from tiny dots (common) to the size of a large chromosome, consisting of multiple copies of a short rearranged DNA segment that has undergone amplification.
double minute chromosomes
dou·ble min·ute chro·mo·somes
paired, extrachromosomal elements lacking centromeres, often associated with a drug resistance gene.