The subsequent breakdown of the nuclear envelope terminates prophase and initiates prometaphase ... characterized by the activity of defined cell-cycle regulators, in particular the mitotic ...

During the S (DNA-replication) phase of the cell cycle, each centriole cylinder duplicates ... at the onset of mitosis (M phase), in early prophase, thus forming two centrosomes; the two resulting ...

About 100 cells divide every second in our body. A key protein in cell division is a protein kinase termed Plk1, because it activates other proteins involved in this process. Plk1 is also ...

Interphase The cell spends most of its life in this phase. The DNA in chromosomes copies itself ready for mitosis. Prophase The DNA in chromosomes and their copies condenses to become more visible.

The cell cycle can be broken down into six key stages: Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis. Interphase is always at the start, Cytokinesis is always at the end ...