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Goal: Review Mitosis and Meiosis New Words: meiosis, meiotic cell division, mitosis, mitotic cell division Do Now: List 3 things you have learned already about Mitosis and Meiosis Goal: Understand Meiotic Cell Division New Words: meiosis, meiotic cell division Mitosis and Meiosis Exam Friday, September 28th 2012 • Cell Cycle • Mitosis • Meiosis Resources: www.mrsoto2012.wikispaces.com • Click on “3. Cell Division” Goal: Review Mitosis and Meiosis New Words: meiosis, meiotic cell division, mitosis, mitotic cell division Number of cell divisions? Mitosis One Meiosis Two Exchange of genetic material? NO Yes Crossing over Number of functioning cell produced from original? Two body cells Four Sex Cells How is the genetic material of final cells produced? Function of cells produced? Identical To parent cell growth and repair Different To parent cell Sexual reproduction Number of cell divisions? Exchange of genetic material? Mitosis One NO Meiosis Two Yes Crossing over Number of functioning cell produced from original? Two Cells Four Cells How is the genetic material of final cells produced? Identical To parent cell Different To parent cell Function of cells produced? Growth & repair Sexual reproduction 1. Write one or more paragraphs that compare the two methods of cell division, mitosis and meiosis. Your answer must include at least: 1) one similarity between the two methods 2) one difference between the two methods 3) one example of a cell that divides by mitosis 4) one example of a cell that divides by meiosis 1. Mitosis and meiosis produce new daughter cells. 2. Mitosis produces 2 daughter cells from the original, meiosis produces 4 daughter cells. In Mitosis, daughter cells have the same number of chromosomes as the parent cell, but in Meiosis daughter cells have one half of the number of chromosomes of the parent cell. 3. Body cells divide by Mitosis 4. Sex cells divide by Meiosis Goal: Review Mitosis and Meiosis New Words: meiosis, meiotic cell division, mitosis, mitotic cell division Number of cell divisions? Exchange of genetic material? Mitosis One NO Meiosis Two Yes Crossing over Number of functioning cell produced from original? Two Cells Four Cells How is the genetic material of final cells produced? Identical To parent cell Different To parent cell Function of cells produced? Growth & repair Sexual reproduction 1) Meiosis occurs in the development of sex cells. Mitosis occurs in most other cells. Identify two additional differences between these processes. •There is an exchange of genetic material (crossing over) in meiosis, whereas there is no exchange of such material in mitosis •Mitosis produces 2 daughter cells from the original, meiosis produces 4 daughter cells. •In Mitosis, daughter cells have the same number of chromosomes as the parent cell, but in Meiosis daughter cells have one half of the number of chromosomes of the parent cell. •In mitosis daughter cells contain the same genetic material as the parent cell, in meiosis daughter cells have different genetic material as the original cell •In mitosis daughter cells are body cells, in mitosis daughter cells are sex cells (gametes)