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Catalyst: Use your notes to fill in the blanks for this sentence. An acquired trait is a trait that _____________ _____________________________________, and an inherited trait is a trait that _________ _____________________________________. FACT! Mitosis and Meiosis AGENDA: 10.19.2010 : : Video/Animation of Mitosis and Meiosis : Cornell Notes about Mitosis and Meiosis : Draw mitosis and mitosis : Work on Vocab Journal Explain the difference between mitosis and meiosis. http://www.cellsalive.com/meiosis.htm Mitosis: cell division in which the nucleus divides Mitosis forms two daughter cells that are exactly the same as the parent cell Genetics (cont) Date: III.Mitosis is cell division in which the nucleus divides A. Daughter Cells (formed by mitosis) have exact copies of the parent cell chromosomes Summary: Genetics (cont) Date: _____________ III.Mitosis is cell division in which the nucleus divides _____________ A. Daughter Cells (formed mitosis) have exact copies of the parent cell chromosomes. Summary: Mitosis makes exact copies of_________ _________________________________________ Genetics (cont) Mitosis Daughter Cells Date: III.Mitosis is cell division in which the nucleus divides A. Daughter Cells (formed mitosis) have exact copies of the parent cell chromosomes. Summary: Mitosis makes exact copies of parent cell chromosomes. Meiosis: cell division that produces reproductive cells (have half of the genetic material of the parent cell). Genetics (cont) Date: IV. Meiosis—cell division that produces reproductive cells (have half of the genetic material of the parent cell). Summary: Reproductive Cells: Egg (female) and Sperm (male) Plant Sperm Seedless Vascular Plants and Bryophytes produce sperm and egg Bryophytes Mosses, Liverworts & Hornworts Bryophytes don’t produce seeds! They require a thin film of water for sperm to swim in. _____________ _____________ _____________ Genetics (cont) Date: IV. Meiosis—cell division that produces reproductive cells (have half of the genetic material of the parent cell). A. Egg—female reproductive cell B. Sperm –male reproductive cell Summary: Mitosis = body cells, but meiosis = ________________ cells Meiosis Egg Sperm Genetics (cont) Date: IV. Meiosis—cell division that produces reproductive cells (have half of the genetic material of the parent cell). A. Egg—female reproductive cell B. Sperm –male reproductive cell Summary: Mitosis = body cells, but meiosis = reproductive cells GP: Modeling Mitosis and Meiosis 1. Get 4 pairs of matching pipe cleaners. 2. Place 4 pipe cleaners onto the desk (these represent chromosomes in the nucleus) 3. Follow along with me as we describe mitosis and meiosis GP: Modeling Mitosis and Meiosis 4 chromosomes (2 pairs of chromosomes) INP: Put Mitosis and Meiosis in your vocabulary journal (page 2) (When you finish this, add color and finish the rest of your vocabulary words) Front Cover 1. Draw and color a strand of DNA for the cover of your Genetics Vocabulary Journal. 2. Label these parts 1. Nitrogen Base 2. Sugar and phosphate backbone 3. Adenine—Thymine 4. Cytosine—Guanine 3. When you finish, work on your vocabulary words from yesterday (add color) Page 1: Vocab Journal Genetics S: Breeding dogs deals with genetics. D: study of passing traits from parents to offspring. Page 2: Vocab Journal Exit Ticket: Write these sentences, and fill in the blanks. 1. Which process is shown below? A. B. C. D. mitosis fertilization meiosis Photosynthesis 2. Which process is shown below? A. B. C. D. mitosis fertilization meiosis Photosynthesis