Match each activity to the correct phase of mitosis. You may use the same answer more than once. a. prophase b. metaphase c. anaphase d. telophase 1. Chromosomes line up single file at the middle of the cell. 2. Two identical nuclei form. 3. Sister chromatids separate. 4. The cell begins to lengthen. 5. Spindle fibers begin to form. 6. Spindle fibers begin to break down. Match each term with the correct description below. a. mitosis b. fertilization c. zygote d. eggs e. meiosis f. sperm 7. sex cells from female reproductive organ 8. sex cells from male reproductive organ 9. only takes place in reproductive organs 10. cell that forms in fertilization 11. joining of two sex cells 12. takes place in body cells Match the following. a. meiosis b. mitosis and cell division 13. one division of the nucleus 14. four daughter cells produced 15. two daughter cells produced
16. results in growth and cell repair 17. diploid daughter cells 18. haploid daughter cells 19. forms sperm and egg cells Match each phase or stage name with the correct letter from the diagram. 20. mitotic phase 21. interphase 22. G1 23. G2 24. mitosis 25. S 26. cytokinesis Match the environmental influence with the example. Each influence may be used more than once. a. soil b. water c. temperature d. social factor
27. color of the tail of a Siamese cat 28. smaller than average plant 29. wilted houseplants 30. pink or blue hydrangea 31. sex of a crocodile s egg 32. color of locust 33. curled leaves of a plant 34. dyed hair of a teenager Indicate the answer choice that best completes the statement or answers the question. 35. A characteristic that distinguishes one organism from another is a. a. trait b. gene c. cell d. model Use the diagram to answer the following questions. 36. How are sex cells produced? a. haploid b. diploid c. meiosis d. mitosis
37. Which best describes how a plant cell divides? a. The membrane pinches shut in the middle of the cell and the cells are split apart. b. The two cells twist apart. c. A new cell wall forms in the middle of the cell and two new cells are formed. d. Plant cells do not divide. 38. Chromosome pairs separate in this phase of meiosis. a. prophase I b. metaphase I c. anaphase I d. telophase I 39. If a cell has 18 chromatids, how many duplicated chromosomes does it have? a. 18 b. 9 c. 36 d. 6 40. Most of the life of any cell is spent in a period of growth called. a. interphase b. prophase c. telophase d. anaphase 41. This is the phase of meiosis in which two daughter cells form. a. prophase I b. metaphase I c. anaphase I d. telophase I 42. The chromatids line up in this phase of meiosis. a. prophase II b. metaphase II c. anaphase II d. telophase II 43. During which stage of interphase do cells copy their DNA? a. S stage b. G1 stage c. G2 stage d. Metastage 44. A desert locust who lives alone is brown or green. A group of desert locusts are all yellow or orange. This is an example of which environmental influence? 45. How many times does a reproductive cell divide during meiosis? a. 1 b. 2 c. 3 d. 4 46. How many cells are produced by a reproductive cell during meiosis? a. 1 b. 2 c. 3 d. 4 47. One cell that undergoes meiosis will yield how many independent cells? a. 1 b. 2 c. 3 d. 4
48. After meiosis, how many chromosomes does each cell have compared to the original cell? a. same number b. half as many c. twice as many d. three times as many 49. Crocodile eggs are male if the nest is about 32 C. This is an example of which environmental influence? 50. Which of the following organisms do NOT have genetic variation? a. humans b. dogs c. trees d. hydra 51. During the S stage of interphase, pairs of identical chromosomes are held together by which structure? a. chromatid b. centromere c. connectroid d. centromatid 52. Which of the following is NOT a result of cell division? a. reproduction b. growth c. nutrition d. repair 53. Which of the following occurs during metaphase? a. The chromosomes line up in the center of the cell. b. The sister chromatids separate. c. Two new identical nuclei are formed. d. The nucleolus disappears and the nuclear membrane breaks down. 54. Which choice is NOT a process of the cell cycle? a. growth b. division c. development d. death 55. How long does it take a cell to complete the cell cycle? a. 8 minutes b. 1 year c. 24 hours d. The time it takes depends on the type of cell that is dividing. 56. During which stage of interphase do cells store energy for use in the mitotic phase? a. S b. G1 c. G2 d. S2 Use the diagram to answer the following questions.
57. What is the cell called that results from fertilization? a. egg b. sperm c. zygote d. diploid 58. Small changes in traits that cause variation are frequently caused by. a. natural selection b. competition c. mutations d. migration 59. Which of the following occurs during telophase? a. The chromosomes line up in the center of the cell. b. The sister chromatids separate. c. Two new identical nuclei are formed. d. The nucleolus disappears and the nuclear membrane breaks down. 60. During which stage of interphase do cells perform their normal cell functions (such as making enzymes to digest your food)? a. S stage b. G1 stage c. G2 stage d. Metastage 61. Low nitrogen in the soil may cause a plant to be smaller than usual. This is an example of which environmental influence? 62. Organisms are their parents. a. different from b. the exact same as c. similar to d. not at all similar to
63. Which type of cells form through meiosis? a. sex cells b. body cells c. zygote cells d. epithelial cells 64. Which type of cell divides by the cell membrane pinching together until the two cells split apart? a. animal b. plant c. mineral d. chromosomal 65. A plant wilts after being unattended for several days. This is an example of which environmental influence? Use the table to answer the following questions. 66. How many chromosomes are in a fern s egg? a. 315 b. 630 c. 945 d. 1260 67. Yeast has how many homologous pairs? a. 8 b. 16 c. 24 d. 32 68. A cell that has two of every kind of chromosome is. a. haploid b. diploid c. an egg d. a sperm Use the diagram to answer the following questions.
69. The female sex cell is called a(n). a. egg b. sperm c. zygote d. diploid 70. What is the first thing that happens when a new cell is produced? a. It gets larger. b. It gets smaller. c. It divides again. d. It rests. 71. Identify the two stages of the mitotic phase. a. mitosis and interphase b. cytokinesis and interphase c. mitosis and cytokinesis d. interphase and metaphase 72. Which of the following occurs during prophase? a. The chromosomes line up in the center of the cell. b. The sister chromatids separate. c. Two new identical nuclei are formed. d. The nucleolus disappears and the nuclear membrane breaks down. 73. A segment of DNA is a. a. trait b. gene c. cell d. model 74. Which is the phase of meiosis in which spindle fibers form. a. prophase I b. metaphase I c. anaphase I d. telophase I
75. If a cell has 22 duplicated chromosomes, how many chromatids does it have? a. 22 b. 44 c. 11 d. 88 76. Each human skin cell has pairs of chromosomes. a. 13 b. 18 c. 23 d. 46 77. How many cells are produced by mitosis and cell division? a. 0 b. 1 c. 2 d. 3 78. The acidity can cause a plant to have specific colors of blooms. This is an example of which environmental influence? 79. What is the shortest phase of mitosis? a. prophase b. metaphase c. anaphase d. telophase 80. In which phase of meiosis II does the nucleolus disappear. a. prophase II b. metaphase II c. anaphase II d. telophase II 81. Which of the following did NOT descend from one type of mustard plant? a. broccoli b. kale c. lettuce d. cabbage 82. Which choice correctly describes the two phases of the cell cycle? a. Cells grow and develop during interphase. Cells reproduce during the mitotic phase. b. Cells grow and develop during the mitotic phase. Cells reproduce during interphase. c. The nucleus of a cell divides during interphase. The cytoplasm of a cell divides during the mitotic phase. d. The nucleus of a cell divides during the mitotic phase. The cytoplasm of a cell divides interphase. 83. Traits are coded by one gene or by genes. a. only 2 b. only 5 c. many d. no 84. Haploid numbers of chromosomes are usually found in the of an organism. a. tissues b. body cells c. sex cells d. zygotes 85. Animal cells do NOT have. a. centrioles b. centromeres c. cell plates/walls d. cytoplasm
86. Water marigolds have thin branched leaves under the water and have broad and wide leaves above the water. This is an example of which environmental influence? 87. How many times does a body cell divide during mitosis? a. 0 b. 1 c. 2 d. 3 88. How long does it take for most dividing human cells to complete a cell cycle? a. a few minutes b. a day c. a year d. about 7 years 89. Genes come from. a. parents b. nature c. our environment d. the store 90. In which phase of meiosis does the membrane surrounding the nucleus break apart. a. prophase I b. metaphase I c. anaphase I d. telophase I 91. The dark ears of a Siamese cat are on the cooler part of the cat s body. This is an example of which environmental influence? 92. Which of the following is NOT an example of a trait? a. blue eyes b. blonde hair c. salamander d. tall 93. This is the phase of meiosis II in which four haploid cells are formed. a. prophase II b. metaphase II c. anaphase II d. telophase II 94. Which of the following is NOT an example of a phenotype of a giraffe? a. brown spots b. thin legs c. long neck d. nucleus 95. Which of the following could be a trait of a pine tree? a. furry b. flat needles c. pink flowers d. red apples 96. A teenager wears the school colors to school because all her friends are doing it. This is an example of which environmental influence?