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Mitosis and Meiosis Pre- Test Name _____________________________ SC.912.L.16.17 Compare and contrast mitosis and meiosis and relate to the processes of sexual and asexual reproduction and their consequences for genetic variation. 1. Which of the following best compares the processes of mitosis and meiosis? A. Mitosis involves one division cycle and results in diploid daughter cells, while meiosis consists of two division cycles and results in haploid gametes. B. Mitosis involves one division cycle and results in haploid gametes, while meiosis consists of two division cycles and results in diploid daughter cells. C. Mitosis involves two division cycles and results in diploid daughter cells, while meiosis consists of one division cycle and results in haploid gametes. D. Mitosis involves two division cycles and results in haploid gametes, while meiosis consists of one division cycle and results in diploid daughter cells. 2. Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis? A. two stages of cell division B. replication of cellular genetic material C. daughter cells that are identical to the parent cell D. four daughter cells that are produced from each parent cell 3. Which type of reproduction leads to increased genetic variation in a population? A. parthenogenesis B. asexual reproduction C. sexual reproduction D. vegetative reproduction 4. Which row in the chart below indicates the correct process for each event indicated? A. row 1 B. row 2 C. row 3 D. row 4 5. Which of the following best explains why meiosis results in greater genetic diversity than mitosis? A. After meiosis, daughter cells are diploid and have twice as much genetic material, which can be divided in many more possible combinations. B. After meiosis, haploid daughter cells are fertilized, which doubles their number of chromosomes and increases the number of possible genes. C. During meiosis, chromosomes assort themselves independently of each other, which allows for more different possible combinations of chromosomes. D. During meiosis, more daughter cells are produced, which increases the likelihood that fertilization will occur. SC.912.L.16.16 Describe the process of meiosis, including independent assortment and crossing over. Explain how reduction division results in the formation of haploid gametes or spore 6. Why is it important for the daughter cells to divide a second time in meiosis? A. The second division switches parts of matching chromatids to increase genetic variation. B. The second division forms four identical cells to ensure that all offspring have the same traits. C. The second division sorts chromosomes into cells that are the same as the parent cells. D. The second division forms haploid cells that can combine with other haploid cells during fertilization. 7. The diagram below shows a cellular process that occurs in organisms. What is the name of this process? A. meiosis B. mitosis C. endocytosis D. phagocytosis 8. What happens to sister chromatids in meiosis II? A. They duplicate. B. They separate. C. They remain together. D. They do not take part. 9. Which of the following cell types is diploid? A. ovum B. sex cell C. somatic cell D. gamete 10. The diagram below shows homologous chromosomes during prophase I of meiosis. Which of the following correctly describes the process being illustrated? A. mutation in which the DNA content of the gene is altered B. segregation of sister chromatids C. condensation and segregation of alleles D. crossing-over in which alleles are exchanged 11. Which of the following best describes how the process of crossing over during meiosis leads to an increase in genetic diversity? A. During prophase I, DNA replication takes place and homologous chromosomes trade places with each other before lining up in preparation for metaphase. B. During prophase I, DNA segments are exchanged between homologous chromosomes resulting in different combinations of alleles. C. During prophase II, fragments of DNA break off of chromosomes and attach to the ends of other chromosomes, resulting in different gene sequences. D. During prophase II, sister chromatids separate from each other, and as they travel to opposite ends of the cell, DNA segments of nearby chromosomes are exchanged. 12. Which phrase best describes meiosis I? A. duplication of paired chromosomes B. fusion of sister chromatids C. division of homologous chromosomes D. creation of two diploid cells