Spontaneous occurrence of tetraploidy and near-haploidy in mammalian peripheral blood.
D000818:Animals; D001854:Bone Marrow Cells; D006238:Haploidy; D007621:Karyotyping; D007962:Leukocytes / Q000166:cytology*; D008297:Male; D009893:Opossums; D011123:Polyploidy; D012730:Sex Chromosomes