1 Name:______________________________________________________________Period:____ Cell Cycle, Mitosis & Meiosis Study Guide 1. Define the following terms: a. Cytokinesis b. Tetrad c. cleavage furrow d. haploid e. diploid f. centromere g. centriole h. i. j. k. l. m. n. mitosis meiosis sister chromatids homologous chromosome chromatin spindle fibers gametes 2. Name and describe two reasons there is so much diversity at the end of meiosis. A. B. 3. Which of the following is a possible result of the following chromosomes crossing over? Why? 4. What are homologous chromosomes? 2 5. Compare and Contrast Meiosis and Mitosis as they relate to the following characteristics: a. How many cells are produced b. Where they occur c. How many “phases” there are d. What kind of cells are produced? i. Are they haploid or diploid? ii. Are they somatic/body cells or gametes? 6. What is the difference between a body cell (somatic) and a sex cell (gamete)? 7. How many chromosomes are found in the body cells of humans? 8. How many chromosomes are found in gametes of humans? 9. What is synapsis? 10. What structure holds sister chromatids together? 11. What are the stages of mitosis? How do they compare to meiosis? 12. 13. 14. 15. 16. In meiosis, when do homologous chromosomes separate? In meiosis, when do centromeres separate? How many times does the cytoplasm divide in mitosis? How many times does the cytoplasm divide in meiosis? What is a zygote? 17. If a shrimp egg cell contains 254 chromosomes, how many chromosomes are in the body cells? 18. If an elephant body cell contains 56 chromosomes, how many chromosomes are in it’s gametes? 3 MATCHING: Match the picture or characteristic to the following stages of meiosis/mitosis: (assume all of these cells came from the same organism) A. Prophase I B. Metaphase I C. Anaphase I D. Telophase I E. F. G H. Prophase II Metaphase II Anaphase II Telophase II I. Mitosis Metaphase J. Mitosis telophase 19. Homologous pairs form tetrads and line up in the center of the cell 20. Spindle fibers separate sister chromatids and pull them to opposite ends of the cell 21. The double stranded chromosomes are HAPLOID and NOT lined up in the center 22. Spindle fibers separate homologous pairs and pull them to opposite ends of the cell 23. The cell has two DIPLOID nuclei WITHOUT any sister chromatids 24. 26. 25. 27. 24. ESSAY: 1. Compare and contrast mitosis and meiosis. Be very specific. (give at least two similarities and three differences)