| 1 How many stage(s) does archenteron invagination take in sea urchin gastrulation? |
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| 2 Which of the following is / are critical stage(s) between the events of fertilization and organ formation? I. gestation, II. cleavage, III. gastrulation |
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| 3 In which of the following organisms is the rangements of the oocyte cytoplasm not crucial for cell differentiation later in development? |
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| 4 Which of the following does fertilization accomplish? I. sperm and egg contact, II. Combination of genes, III. Creation of new organism |
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| 5 Which of the following initiates the acrosome reaction in sea urchins? |
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| 6 Which of the following statements best describe an egg? |
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| 7 Which of the following is / are necessary for cell division? |
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| 8 Which of the following stages of cell division are closely related? |
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| 9 Incomplete cleavage is otherwise known as: |
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| 10 Which of the following cannot induce acrosome reaction? |
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| 11 Which of the following organisms undergo internal fertilization? |
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| 12 Which of the following terms is not another name for fertilization? |
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| 13 From which of the following is the centromere needed to produce the mitotic spindle of cell division derived? |
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| 14 The species – specific recognition of sea urchin gametes does not occur at which of the following level? |
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| 15 Which of the following statements best describe fertilization? |
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| 16 Which stage of the meiotic prophase ends with the breakdown of the nuclear membrane and the migration of chromosomes to the metaphase poles? |
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| 17 At which stage of prophase 1 does synapsis occur? |
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| 18 What does the germ cells entering meiosis later become in hermatphroditic animals? |
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| 19 Which stage of prophase 1 is characterized by a high level of gene transcription? |
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| 20 In which of the following cell divisions are the daughter nuclei genetically identical to the parent cell? |
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