1. Starter Feb. 24, 2010 Copy & Answer

2. INSTRUCTIONS FOR FOLDABLE
1ST PAGE CELL CYCLE
INTERPHASE
MITOSIS
CYTOKINESIS
LABEL ALL PAGES 1-8
2ND PAGE INTERPHASE
DRAW LABEL AND COLOR PHASE FROM PAGE 267

3. INSTRUCTIONS FOR FOLDABLE
3RD PAGE TITLE IS MITOSIS
PROPHASE
METAPHASE
ANAPHASE
TELOPHASE
PAGES 4-7 DRAW LABEL AND COLOR THE FOUR PHASES PAGE 207
PAGE 8 DESCRIBE CYTOKINESIS FOR PLANT AND ANIMAL CELLS DRAW LABEL AND COLOR

4. Meiosis
A type of cell division

5. Background Vocabulary
Haploid: a cell with one set of chromosomes
Diploid: a cell with two sets of chromosomes
Gamete: sex cell
Somatic cell: body cell
Egg: female sex cell
Sperm: male sex cell

6. More Background Somatic cells are diploid cells
Gametes are haploid cells
In humans, diploid cells have 46 chromosomes
In humans, haploid cells have 23 chromosomes

7. Meiosis Purpose: to make egg and sperm cells
Starts with one diploid somatic cell
Ends with four haploid gametes
Meiosis makes sexual reproduction possible
Sexual Reproduction: the production and fusion of haploid gametes

8. Overall Process of Sexual Reproduction
Man
Woman
Meiosis
Sperm
Egg
Fertilization
Zygote

9. Process of Meiosis
Before meiosis can begin, DNA replication has to occur.
Meiosis has two divisions, each with four steps (total of 8 steps)
After chromosomes are replicated, homologous chromosomes pair up

10. Meiosis (cont.)
Homologous chromosomes line up in the center of the cell, then separate.
The cells split almost completely into two cells
In each of the two cells, sister chromatids stay paired
Sister chromatids line up in the center, then separate.

11. Meiosis (cont) The two cells divide to become four cells
One chromosome from each pair goes into each cell

12. Results of Meiosis Ends with four gametes
Gametes are genetically different
Allows chromosome number to remain constant in species

13. Vocabulary Squares for Vocabulary Page 263 Section 10. 2 Meiosis
Vocabulary Squares for Vocabulary Page 263 Section 10.2 Meiosis. Each vocabulary square should include word, definition, diagram/drawing, and sentence using the word.
4 drawings Divide paper into 4 equal squares for drawings. Draw, Label, and color the following:
Homologous Chromosome (p.265), Sexual Reproduction (p.266), Crossing Over (p. 269 A,B,C), and Non-disjunction (p.271)
White Paper Rulers Color Pencils on Cart.
*Read pages Section 10.2 Meiosis

14. MITOSIS CELL DIVISION DRAWINGS and VOCABULARY
Definitions Page 201 ALL 17 TERMS DRAW, LABEL, AND COLOR: Fig Page 205 Chromosome Only Fig Page 206 Fig Page 207 A, B, C, and D Read pages Homework: Write vocabulary words and definitions 2 times each; Review notes