1 Cytarabine, commonly known as TarabineÂ®, CytarabineÂ®, or Cytosar-UÂ®, is a drug used to treat certain cancers, most notably leukemia found in dogs and cats. 2  Chemically, it is a pyrimidine analog that functions inside cells as an antimetabolite.rand Names and Other Names of Cytarabine. 1  This drug is registered for use in humans only. 2  Human formulations: TarabineÂ® (Adria), CytarabineÂ® (Faulding), Cytosar-UÂ® (Gensia Sicor), and generic cytarabine.
According to Biologists, synapsis is only known to occur in  prophase 1 stage in meiosis because it is responsible for paring  homologous chromosomes. This event does not oc â¦ cur in mitosis. Suzanne (Zanbabe) Benner. 1,477,969 Contributions.
Best Answer: You must be referring here to the phenomenon of non-disjunction that occasionally takes place during meiosis. Under normal conditions, meiosis proceeds in 2 parts: Meiosis1: Double stranded homologous chromosomes separate, giving rise to 2 haploid cells with duplicate chromosomes. Meiosis 2: The 2 chromatids then separate, giving rise to another 2 cells. Occasionally, non-disjunction occurs.