Cell Cycle Review Challenge For questions 1-10, use the images and choices below: 1. 2. 3. 4. 5. 6. Which stage is interphase? Which stage is prophase? Which stage is metaphase? Which stage is telophase? Which stage are chromatids pulled apart? Which stage does the cell participate in normal function? 7. Which stage would a cell plate form, producing 2 new cells? 8. Which stage is different for mitosis and meiosis? 9. Which stage is skipped in meiosis II? 10. Which stage do chromosomes align at the equator of the cell? 11. What are the two rounds of meiosis (in order) known as? a. Round I and Round II b. Mitosis and meiosis c. Meiosis II and Meiosis I d. Meiosis I and Meiosis II 12. Spindle fibers are made during _____________________, but don’t attach to the centromeres of the chromosomes until _____________________. d. Anaphase, prophase a. Prophase, metaphase e. Metaphase, anaphase b. Prophase, anaphase c. Metaphase, prophase 13. Substances that are known to promote cancer growth in general, are known as a. Carcinogens c. Tobacco b. Smog d. UV light 14. When the cell continues to grow and divide very rapidly and uncontrollably, the clump of cells formed is known as a a. Lymph node c. Tumor b. Mole d. Cyst 15. Two molecules that control the cell cycle are kinases and ________________. a. Enzymes c. Growth factors b. Cyclins d. Cell hormones. 16. When a cell is getting ready to divide, the DNA must first condense into chromosomes. To do this, the DNA wraps around proteins called __________________________. a. DNA protein b. Molecules c. Histones d. Kinase 17. What is happening in the picture below? a. Synapsis c. Both a and b b. Crossing over d. None of the above 18. Which sequence shows the progression from least complex structure to most complex structure? a. cellÆ organ Æ tissue Æ organ system b. cell Æ tissue Æ organ Æ organ system c. organ system Æ tissue Æ organ Æ cell d. organ system Æ organ Æ tissue Æ cell 19. Mr. and Mrs. Robinson are expecting a child, but their karyotype shows an abnormality in chromosome pair 23 (all other chromosomes appear normal). What is the notation for this karyotype? D. 47, XY, +23 E. 45, XYY, +23 A. 46, XXY, +23 B. 46, XY, +23 C. 47, XXY, +23 For questions 20-21, use the karyotype and choice of answers below: A. 19 B. 20 C. 38 D. 40 20. How many chromosomes are in a gamete of this organism? 21. How many chromosomes are in a brain cell of this organism? 22. Is the organism whose karyotype is shown, a male or female? a. Male b. Female c. Not enough information given 23. Stem cells that can be harvested from embryos and have the potential to become almost any cell type are known as _______________________ cells. a. Totipotent c. Multipotent b. Pluripotent d. Stem 24. In development, stem cells first go through _________________, then they go through _________________ where they obtain specialized structures for specific functions. a. Differentiation, determination c. Determination, differentiation b. Apoptosis, determination d. Apoptosis, differentiation 25. Many prokaryotic organisms use ________________________ as a form of reproduction. a. Binary fission c. Vegetative reproduction b. Meiosis d. Cytokinesis