How many stages of cell division do you see in this image? Onion Root Tip & Cell Cycle Lab How many stages of cell division do you see in this image?

What are the key roles of cell division? Cell Cycle Notes What are the key roles of cell division? Cell division functions in: Reproduction for some organisms Growth of an organism from a fertilized egg Repair of cells that die from normal wear and tear or accidents Cell division distributes identical sets of chromosomes to daughter cells

Cell Cycle Notes DNA molecules are packaged into . chromosomes Human (body cells) have 46 chromosomes Human (sperm or eggs) have 23 chromosomes Chromosomes are made of a material called__________. When chromatin tightly condenses in preparation for cell division, it is referred to as a chromosome. chromosomes somatic cells gametes chromatin.

Cell Cycle Notes Chromatin is composed of DNA and proteins. Chromatin is the “relaxed” or “unwound” form of our genetic material that is present during most of a cell’s life. DNA is supercoiled around proteins called histones. Together the DNA and histone proteins form bead-like structures called nucleosomes DNA + 8 histone proteins = a nucleosome

Mitosis Notes The chromosome is duplicated during ___ in _____________. Each duplicated chromosome consists of two . These are connected by a . S interphase sister chromatids centromere

What is the difference between interphase, mitosis, and cytokinesis?

Mitosis (M Phase) Prophase Metaphase Anaphase Telophase The M Phase consists of: Mitosis and Cytokinesis Four Stages of Mitosis: Prophase Metaphase Anaphase Telophase

RE-identify the stages of Mitosis