Acentric mini-chromosomes are lost at a moderate but elevated rate during male germline mitotic divisions and in female mitosis, but appear to be transmitted efficiently through pre-blastoderm mitoses and male meiosis. mit(1)15 can localise to the mini-chromosome.
Minichromosome is 720bp in length.
Contains 400kb of centric heterochromatin in inverted orientation.
Monosome transmission behaviour from both male and female parents is stable demonstrating normal transmission and normal centromere function.