|1.||metaphase anaphase See also telophase the first stage of mitosis, during which the nuclear membrane disappears and the nuclear material resolves itself into chromosomes|
|2.||the first stage of meiosis, divided into leptotene, zygotene, pachytene, diplotene, and diakinesis phases|
prophase pro·phase (prō'fāz')
The first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell.
The first stage of meiosis, during which the DNA replicates, homologous chromosomes undergo synapsis, chiasmata form, and the chromosomes contract.
prophase [%PREMIUM_LINK%] (prō'fāz') Pronunciation Key |