Mitosis Making new cells for growth

The Cell Cycle Cycle of events that a cell goes through throughout its life A cell will go through many cycles throughout its life One cycle begins with a new “daughter” cell and ends with it going through mitosis (dividing).

Interphase Period of cell growth and metabolism DNA is relaxed G1 – growth and metabolism S – DNA replication occurs G2 – growth and preparation for division DNA is relaxed Nuclear membrane visible Nucleolus is visible

Prophase Chromosomes condense and are visible Nuclear envelope & nucleolus disappear Microtubules attach to chromosomes Chromosomes start to move to the center of the cell Centrosomes move to opposite poles

Metaphase Chromosomes are lined up at the metaphase plate Mitotic spindle completely formed Centrosomes at opposite poles Microtubules attached to chromatids

Anaphase Daughter chromosomes moves to opposite poles of cell Sister Chromatids are separated Daughter chromosomes moves to opposite poles of cell Cell elongates

Telophase & Cytokinesis Reverse of prophase: Nuclear membrane & nucleolus reappear Chromosomes relax Mitotic spindle disappears Cytokinesis divides the cell into two genetically identical daughter cells Builds a “wall” in plants & “pinches” in animals Cytokinesis begins in telophase but ends just after mitosis is complete

Prophase Metaphase Telophase Cytokinesis Interphase Telophase Anaphase