Mitosis vs. Meiosis 1. Complete the concept map comparing mitosis and meiosis. Use the following terms, each term can be used one or more times: diploid cell, one cell division, four haploid cells, parent cell, two cell divisions, body cell, same, chromosomes, gamete-producing cell, half, two diploid cells. 2. Define homologous chromosome. __________________________ ______________________________________________________ 3. Define sister chromatids. _________________________________ ______________________________________________________ 4. Describe 2 parts of meiosis that are similar to mitosis. a. ________________________________________________ ________________________________________________ b. ________________________________________________ ________________________________________________ 5. Identify whether each process below occurs during mitosis, meiosis, or both. a. Sister chromatids separate __________________________ b. Haploid cells are formed ___________________________ c. Cell division occurs once ___________________________ d. Homologous chromosomes pair _____________________ e. 4 haploid cells are the final result ____________________ f. Crossing over occurs ______________________________ Parent Cell g. Cell division occurs twice __________________________ h. Replicated chromosomes line up in the middle of the cell __________________________ i. 2 diploid cells are the final result _____________________________________________ 6. Define crossing over. ____________________________________________________________________________ ______________________________________________________________________________________________ What phase does it occur? ________________________________________________________________________ 7. Does the parent cell in Mitosis start off as diploid or haploid? ______________________ Are the resulting cells at the end of Mitosis diploid or haploid? ___________________________ 8. Does the parent cell in Meiosis start off as diploid or haploid? _____________________ Are the resulting cells at the end of Meiosis diploid or haploid? ____________________________ 9. How does the number of chromosomes in a sex cell compare with the number of chromosomes in the parent cell? ______________________________________________________________________________________________ A 10. Identify the phase in the cell to the left. _____________________________ 11. What is the name of process A that ensures genetic variation? ___________________________________ 12. Identify the phase in the cells to the left. _______________________ 13. What is happening to the nuclear envelope? ______________________________ 14. Identify the phase in the cell to the left. _________________________ What is being separated? ___________________________________________________ This diagram is a general overview of what occurs during Mitosis and Meiosis, but the specific phases have not be labeled for you!!! 15. Explain why mitosis is referred to as a process of cell replication. _________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ 16. Explain why meiosis is referred to as a process of cell reduction. __________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________