AIM: What are the phases of the Cell Cycle? I. What happens during Interphase? Cell Cell

Interphase: DNA (chromosomes) are replicated. Centromere Chromatid

Interphase Centrioles The organelles for cell division are produced.

II. “M” Phase = MITOSIS -the cells undergo cell division. “The dance of the Chromosomes”

III. Stages of Mitosis: Prophase: The chromosomes become visible. The centrioles separate and Spindle fibers begin to form. The nuclear membrane breaks down. Centriole Nuclear Membrane Spindle Fibers

Stages of Mitosis: Metaphase: The chromosomes line up across the center of the cell. Each chromosome is connected to a spindle fiber at the centromere.

Stages of Mitosis: Anaphase: The spindle fibers separate the chromatids into individual chromosomes and they are moved apart.

Stages of Mitosis: Telophase: The chromosomes gather at opposite ends of the cell. 2) Two new nuclear membranes form. The chromosomes lose their distinct shapes.

Cytokinesis: The cytoplasm pinches and two cells are formed.

What is the end result of Mitosis? 46X 46X 46X + Daughter Cell Daughter Cell Parent Is the genetic material of the daughter cells identical to the parent? Chromosome Number? The same number of chromosomes is maintained from one generation to the next.

Mitosis Phases Prophase Metaphase Anaphase Cytokinesis Telophase

Which phase are these cells in? Prophase Anaphase

What phase are these cells in? Metaphase Telophase