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Name _______________________ Date ___________ Period _______ Cell Reproduction Review Label each part of the cell cycle. Word Bank Cytokinesis G2 Anaphase Metaphase 1. ____________ Prophase G1 S Telophase 2. ________________ 4,__________________ 5. ___________________ 7. _________________ 8. ____________________ 1 3. _________________ 6. ____________________ Label & describe what is occurring: Chromosome centriole spindle fibers nuclear membrane Stage (Label all structures) What's occurring? INTERPHASE PROPHASE METAPHASE 2 ANAPHASE TELOPHASE CYTOKINESIS MITOSIS MULTIPLE CHOICE: Circle the letter of the answer that best completes the statement. 1. DNA that is spread out in a non-dividing cell is called _____________________. A. chromosomes B. chromatin 2. The two chromatid arms on a chromosome are ____________________. A. identical copies B. similar but not identical 3. Cells spend most of their lifetime in _____________________ phase of interphase. A. Mitosis B. S C. G1 D. G2 3 4. DNA Replication is making a copy of _________. A. RNA B. DNA C. Ribosomes D. Nucleus 5. Which A. B. C. D. organisms carry out mitosis? Prokaryotes Eukaryotes Bacteria Archea Bacteria 6. Mitosis is the division of the ________. A. Endoplasmic Reticulum B. Lysosomes C. Golgi Apparatus D. Nucleus 7. Cells are derived from ___________________. A. plants B. the sun C. other cells D. bacteria 8. Humans have ______ chromosome and ________ pairs. A. 46, 23 C. 52, 104 B. 4, 8 D. 20, 40 C. 9. A ________________ is a map that shows all the chromosomes lined up from largest to smallest in pairs. A. Codon B. Transcription C. Karyotype D. Klinefelters 10. How many stages of mitosis are there? A. 3 B. 4 C. 7 11. What is a mutation? A. A change in the genetic code, your DNA B. A change in the surroundings C. A change in the way you do things D. It doesn’t exists 4 12. What is a mutagen? A. An electrical shock B. Chemicals or other agents that change your DNA C. The codon is brought by the anticodon D. How the lysosomes function Short answer: 1. What happens in a cancer cell that is different than in a normal cell? 2. What is a tumor? 3. Identify what the tumor suppressor gene does. 4. Describe what the proto-oncogene does. 5. If the proto-oncogene gets a mutation what could occur. MATCH THE PHASE WITH WHAT HAPPENS: You CAN use them more than once S G1 G2 Mitosis (M) Cytokinesis (C) ______ Division of chromosomes happens ______ Division of cytoplasm happens ______ Cell makes the molecules and organelles needed for cell division ______ Made up of telophase, anaphase, prophase, metaphase _______ Cell is reading the DNA code and “doing its job” _______ Cell makes a copy of its DNA 5 MATCH THE PHASE WITH WHAT HAPPENS: You CAN use them more than once! Interphase (I) Prophase (P) Telophase (T) Cytokinesis (C) Metaphase (M) Anaphase(A) _______ 1. DNA is all spread out as chromatin and nuclear membrane is visible _______2. DNA scrunches up and chromosomes are first visible _______3. Chromosomes line up in middle of cell _______4. DNA is copied and cell prepares to divide _______5. Chromatid arms separate and move to opposite ends of the cell _______6. Nuclear membrane & nucleolus disappear _______7. Two nuclei are visible _______8. First dividing phase _______9. Made up of G1, S, G2 _______10. Centrioles & spindle fibers appear next to nucleus _______11. Cytoplasm is split between two cells _______12. Spindle fibers and centrioles disappear _______13. Chromosomes unwind into chromatin & nucleus returns 6