Potentially Infectious Biomedical Waste includes, but is not limited to the following: 1  Cultures and stocks of infectious agents and associated biologicals, including cultures from medical and pathological laboratories, from research and industrial laboratories.
1 (biology) During meiosis, the separation of chromosomes (homologous in meiosis I, and sister chromatids in meiosis II). ( 2 in mathematics): conjunction. ( 3 in mathematics): logical connective. ( in logic): inclusive disjunction.
Nondisjunction in mitosis or meiosis is the cause of most aneuploids. Disjunction is the normal separation of homologous chromosomes or chromatids to opposite poles at nuclear division. Nondisjunction is a failure of this disjoining process, and two chromosomes (or chromatids) go to one pole and none to the other.ondisjunction in mitosis or meiosis is the cause of most aneuploids. Disjunction is the normal separation of homologous chromosomes or chromatids to opposite poles at nuclear division. Nondisjunction is a failure of this disjoining process, and two chromosomes (or chromatids) go to one pole and none to the other.