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Name: _______________________________________________ Period: ____________ Unit 6 Cell Division & Heredity Review Sheet 1. Describe the difference between a chromosome and a gene – 2. Draw and label a chromosome-­‐ (chromosome, sister chromatids, centromere) 3. What are chromatids? 4. Where are genes located? 5. Where is DNA located? 6. Where are chromosomes found in a cell? 7. Explain the relationship between DNA, nucleotides, genes, chromosomes, proteins, and traits – 8. Draw a nucleotide. (nitrogenous base, 5-­‐carbon sugar (deoxyribose or ribose), phosphate) 9. What is a diploid (2n) cell & give an example – 10. How many chromosomes are found in a human diploid cell? 11. What is a haploid (n) cell & give an example – 12. How many chromosomes are in a human haploid cell? 13. What is the purpose of karyotyping? 14. How do scientists analyze a karyotype (ie: what are they looking for)? 15. What are the chromosomal pairs for – 1. Females: 2. Males: 16. Which chromosomal pair determines gender on a karyotype? 17. Which sex chromosome is larger? Why? 18. Which chromosomal pairs represent autosomes? 19. True/False: Autosomes are diploid. 20. What are the 4 distinct phases of the cell cycle? Explain their function-­‐ 1. 2. 3. 4. 21. What is the longest phase of the cell cycle? 22. What 3 phases of the cell cycle does interphase encompass? 1. 2. 3. 23. What is the purpose of interphase? 24. What is mitosis (explain purpose, type of cells that divide, & final product)? 25. Briefly describe what happens in the four phases of mitosis & draw a visual representation-­‐ 1. Prophase: 2. Metaphase: 3. Anaphase: 4. Telophase: 26. The 2 steps of M phase are – 1. 2. 27. What is cytokinesis? 28. When does cytokinesis occur? 29. What forms between the divided nucleus during cytokinesis – 1. in plants-­‐ 2. in animals-­‐ 30. What is cancer & how does it occur? 31. What are the two types of tumors? Which one is cancerous & non-­‐cancerous? 1. 2. 32. Explain apoptosis-­‐ 33. Practice labeling the cell cycle diagram below:
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