Transcription of Name of Phase - WPMU DEV
1 Meiosis Overview Part 1: Answer the following questions below. 1. What are homologous chromosomes? CHROMOSOMES OF THE SAME PAIR 2. What are sister chromatids? CHROMOSOME ARMS , OR EQUAL CHROMOSOMES BOUND BY CENTROMERE. 3. When during meiosis do homologous chromosomes separate? ANAPHASE 1 4. When during meiosis do sister chromatids separate? ANAPHASE 2 5. Which are more similar, two sister chromatids or two homologous chromosomes? TWO SISTER CHROMATIDS 6. Explain the difference between a diploid cell and a haploid cell. DIPLOID = 2N= FULL SET OF CHROMOSOMES; HAPLOID = N= SET OF CHROMOSOMES 7. A haploid gorilla cell contains 24 chromosomes. How many chromosomes would a diploid gorilla contain?
2 48 8. Are egg and sperm haploid or diploid? HAPLOID Are your liver cells haploid or diploid? DIPLOID Part 2: Match the Phase of meiosis with its correct description using the word bank provided. Name of Phase Description 1. PROPHASE I homologous chromosomes pair up and form tetrad 2. ANAPHASE I Spindle fibers move homologous chromosomes to opposite sides 3. TELOPHASE II Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed 4. METAPHASE II Chromosomes line up along equator, not in homologous pairs 5. TELOPHASE I Cytoplasm divides, 2 daughter cells are formed 6. ANAPHASE II Chromatids separate I Homologs line up alone equator Word Bank Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II Telophase II Cytokinesis II ANAPHASE I PROPHASE I TELOPHASE II METAPHASE I METAPHASE I I TELOPHASE I PROPHASE II TELOPHASE II / CYTOKINESIS II Part 3: On each of the images, label the Phase of meiosis.
3 1. ANAPHASE II 2. CYTOKINESIS I 3. METAPHASE I 4. TELOPHASE II 5. TELOPHASE I 6. TELOPHASE II/CYTOKINESIS 7. METAPHASE II 8. PROPHASE I 9. TELOPHASE I 10. ANAPHASE I 11. ANAPHASE II 12. ANAPHASE I 13. TELOPHASE II 14. CYTOKINESIS / TELOPHASE II 15. PROPHASE I 16. A cell with a diploid number of 20 undergoes meiosis. This will produce 4 daughter cells, each with 10 chromosomes. 17. Tetrads line up along the equator during this Phase : METAPHASE I 18. At the end of meiosis I, 2 daughter cells are created.
4 These daughter cells are [ diploid | haploid ]. 19. Meiosis occurs in what type of cells: GAMETES OR SEX CELLS, SPERM AND EGGS 20. True or False (circle one): Sex cells have twice as many chromosomes as body cells.
