Cell Cycle The series of events that cells

Cell Cycle The series of events that cells go through as they grow and divide.

Cell Cycle: �Interphase – growth �Mitosis – nuclear division �Cytokinesis – division of cytoplasm

Mitosis: �Nuclear (nucleus) division �Daughter nuclei is identical to the parent � 46 chromosomes (23 pairs) are replicated

Interphase: �Is not part of mitosis Includes: �G 1 phase = growth of the cell �S phase = synthesis of DNA; chromosomes replicate which result in 2 copies of each chromosome called sister chromatids �G 2 phase = Number of organelles and the volume of the cytoplasm increases

Interphase:

Prophase: Mitosis begins �Chromatin condense into chromosomes and become visible �Nuclear envelope disappears �Centrioles separate and spindle fibers form = guide the chromosomes through division

Prophase:

Metaphase: �Chromosomes line up across the center of the cell �Each chromosome is connected to a spindle fiber at its centromere �Cell checkpoint

Metaphase:

Anaphase: �Sister chromatids separate and move apart

Anaphase:

Telophase: �Chromosomes gather at opposite ends of the cell � 2 new nuclear membranes begin to form �Spindle fibers disassemble �Mitosis is complete

Telophase:

Cytokinesis: �Is not part of mitosis �The cytoplasm pinches in half �Each daughter cell has an identical set of duplicate chromosomes �Completes the process of cell division

Cytokinesis: Telophase Cytokinesis

“Party” (P) “Meet in the middle” (M) “Au revoir” (A) “Ta da” (T)

http: //www. youtube. com/watch? v=Q 6 uc. KW IIFmg