Prometaphase

**Definition:** The phase of cell nucleus division following PROPHASE, when the breakdown of the NUCLEAR ENVELOPE occurs and the MITOTIC SPINDLE APPARATUS enters the nuclear region and attaches to the KINETOCHORES.

**Tree numbers:** - G04.144.220.220.687.812 - G04.144.220.220.781.812 - G05.113.220.687.812 - G05.113.220.781.812

**Synonyms:** - Pro-Metaphase