Meiosis Past Paper PDF

## Meiosis ### Multiple Choice Questions: 1. Which stage of meiosis involves homologous chromosomes lining up in the center of the cell? * a) Prophase I * b) Metaphase I * c) Anaphase I * d) Telophase I (Answer: b) 2. How many haploid daughter cells result from meiosis? *...

## Meiosis ### Multiple Choice Questions: 1. Which stage of meiosis involves homologous chromosomes lining up in the center of the cell? * a) Prophase I * b) Metaphase I * c) Anaphase I * d) Telophase I (Answer: b) 2. How many haploid daughter cells result from meiosis? * a) 1 * b) 2 * c) 4 * d) 8 (Answer: c) 3. During which phase does crossing over occur? * a) Prophase II * b) Metaphase II * c) Prophase I * d) Metaphase I (Answer: c) 4. What happens during anaphase II? * a) Homologous chromosomes separate * b) Sister chromatids separate * c) Homologous chromosomes line up * d) DNA replication occurs (Answer: b) 5. What is the significance of DNA replication in meiosis? * a) It occurs before meiosis I to ensure each daughter cell receives a complete set of chromosomes. * b) It occurs after meiosis I to prepare for meiosis II. * c) It is not involved in meiosis. * d) It occurs only during meiosis II. (Answer: a) 6. Which process results in genetically identical daughter cells? * a) Meiosis * b) Mitosis * c) Both * d) Neither (Answer: b) 7. How many chromosomes would a daughter cell have if a diploid cell with 36 chromosomes undergoes meiosis? * a) 36 * b) 18 * c) 72 * d) 9 (Answer: b) 8. What is the ploidy of the daughter cells produced by meiosis? * a) Diploid (2n) * b) Haploid (n) * c) Triploid (3n) * d) Tetraploid (4n) (Answer: b) 9. A major difference between mitosis and meiosis is: * a) Mitosis produces two cells, meiosis produces four. * b) Mitosis produces diploid cells, meiosis produces haploid cells. * c) Both a and b. * d) Neither a nor b. (Answer: c) 10. Spindle fibers are primarily involved in: * a) DNA replication * b) Chromosome movement * c) Crossing over * d) Cytokinesis (Answer: b) ### True/False Questions: 1. Meiosis I and Meiosis II are identical processes. (Answer: False) 2. Meiosis results in four genetically identical daughter cells. (Answer: False) 3. DNA replication occurs before both meiosis I and mitosis. (Answer: True) 4. Crossing over occurs during prophase II. (Answer: False) 5. Homologous chromosomes separate during anaphase I. (Answer: True) 6. Sister chromatids separate during anaphase II. (Answer: True) 7. Mitosis produces haploid cells. (Answer: False) 8. Meiosis is essential for sexual reproduction. (Answer: True) 9. The number of chromosomes in daughter cells after meiosis is half the number in the parent cell. (Answer: True) 10. Both mitosis and meiosis involve the separation of chromosomes. (Answer: True) ### Short Answer Questions: 1. Explain the difference between homologous chromosomes and sister chromatids. 2. Describe the events that occur during prophase I of meiosis. 3. What is the significance of crossing over in meiosis? 4. Compare and contrast the processes of meiosis I and meiosis II. 5. Explain how the genetic variation is increased during meiosis. 6. Why is it important that meiosis reduces the chromosome number by half? 7. What are the key differences between the products of mitosis and meiosis? 8. Describe the role of spindle fibers in meiosis. 9. If a cell with 40 chromosomes undergoes meiosis, how many chromosomes will each daughter cell contain? 10. Explain how errors during meiosis can lead to genetic abnormalities. ### Fill-in-the-Blank Sentences: 1. Homologous chromosomes _______ in the center of the cell during metaphase I. (Answer: line up) 2. _______ pull homologous pairs to the ends of the cell during anaphase I. (Answer: Spindle fibers) 3. Four haploid (N) _______ form at the end of meiosis. (Answer: daughter cells) 4. Cells undergo a round of DNA _______ before meiosis I. (Answer: replication) 5. _______ separate from each other during anaphase II. (Answer: Sister chromatids) 6. _______ occurs during prophase I and contributes to genetic diversity. (Answer: Crossing-over) 7. Spindle fibers attach to the _______ during metaphase I. (Answer: homologous chromosome pairs) 8. Individual chromatids move to each end of the cell during _______. (Answer: anaphase II) 9. Meiosis results in a reduction in the number of _______. (Answer: chromosomes) 10. Mitosis produces two genetically _______ daughter cells. (Answer: identical) ### Answer Key: (Detailed answers would be too extensive for this format. The above answers provide the correct choices/terms. A middle school teacher should provide more detailed explanations to students.) Please ensure that you carefully review your questions and answers before utilizing them.