PLEASE, DO NOT WRITE ON THIS-Thank You! MEIOSIS REVIEW QUESTIONS (20) _____1. The number of chromosomes in a gamete is represented by the symbol a. Z b. X c. N d. Y _____2. If an organism’s diploid number is 12, its haploid number is a. 12 b. 6 c. 24 d. 3 _____3. Gametes have a. homologous chromosomes b. twice the number of chromosomes found in body cells c. two sets of chromosomes d. one allele for each gene _____4. Gametes are produced by the process of a. mitosis b. meiosis c. crossing-over d. replication Figure 11-1 Figure 11-3 _____5. What is shown in Figure 11-3? a. independent assortment b. anaphase I of meiosis c. crossing-over d. replication _____6. Chromosomes form tetrads during a. prophase of meiosis I c. interphase b. metaphase of meiosis I d. anaphase of meiosis II _____7. What happens between meiosis I and meiosis II that reduces the number of chromosomes? a. crossing-over occurs c. replication occurs twice b. metaphase occurs d. replication does not occur _____8. Unlike mitosis, meiosis results in the formation of a. diploid cells b. haploid cells c. 2N daughter cells d. body cells Figure 11-2 _____9. In Figure 11-2, during which stage might new allele combinations (genetic diversity) form? Identify the phase. a. Metaphase I c. Prophase II b. Prophase I d. Anaphase I _____10. If the stages shown in Figure 11-2 are taking place in a female, how many egg cells will result from the end of meiosis I & II? a. four eggs c. one egg; 3 polar bodies b. three eggs; 1 polar body d. two eggs; 2 polar bodies _____11. In Figure 11-2, in which stage does each cell have a single copy of each gene? Identify the phase. a. Prophase I c. Prophase II b. Anaphase I d. Telophase II & Cytokinesis _____12. Unlike Metaphase II, in Metaphase I, chromosomes are lined up in the middle of the cell: a. in a single file c. in homologous pairs b. randomly d. there is no difference between the two _____13. Unlike Metaphase I, in Metaphase II, chromosomes are lined up in the middle of the cell: a. in a single file c. in homologous pairs b. randomly d. there is no difference between the two _____14. Unlike Anaphase II, in Anaphase I: a. sister chromatids separate b. homologous chromosomes separate c. there is no separation d. there is no difference between the two _____15. Unlike Anaphase I, in Anaphase II: a. sister chromatids separate b. homologous chromosomes separate c. there is no separation d. there is no difference between the two TRUE or FALSE Indicate whether the statement is true (A) or false (B). _____16. If an organism has 16 chromosomes in each of its egg cells, the organism’s diploid number is 32. _____ 17. Mitosis results in two cells, whereas Meiosis results in one cell. _____ 18. In males, 4 sperm cells are produced. In females, only one egg cell is produced. _____ 19. There is also Interphase II, where DNA replication happens again, for the second time. _____ 20. Meiosis asexually produces body cells for growth and repair. <Vocabulary> - Define 1. 2. 3. 4. 5. 6. 7. Homologous – Diploid – Haploid – Meiosis – Tetrad – Sister Chromatids – Crossing Over – What is the symbol that represents the number of chromosomes in a diploid cell? _________ What is the symbol that represents the number of chromosomes in a haploid cell? ________ Assign A = diploid or B = haploid for the cells below: o Liver cell _____ o Nervous system cells _____ o Gamete/Sex cells _____ o Somatic/Body cells _____ o Egg/Ova cells _____ o Sperm cells _____ o Bone cells _____ o Before Meiosis _____ o After Meiosis _____ o After fertilization _____ Fill in the table below: Organism Mosquito Diploid (2N) Chromosomes 6 Haploid (N) Chromosomes 3 Housefly 6 Fruit Fly 4 Pea Plant 14 Corn 20 Human 23 Frog 13 Assign corresponding letters for each events listed below: A = Mitosis only Events Two cell divisions (stages) Four daughter cells produced Sexual Reproduction Asexual Reproduction DNA replication Chromosome number is maintained Chromosome number is cut in half Crossing over occurs Daughter cells are NOT identical Daughter cells are identical Two genetically identical cells produced PMAT (Pro-, Meta-, Ana-, Telo-phase) B = Meiosis only C = Both
© Copyright 2026 Paperzz