Mitosis

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Author:
Luimi
ID:
236586
Filename:
Mitosis
Updated:
2013-09-23 20:44:31
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Lab
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Description:
Bio 105 Mitosis worksheet
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  1. Mitosis takes place in ? cells; meiosis takes place in sex cells (i.e. in developing sperm and egg cells)
    Somatic
  2. In DNA, the base adenine binds to the base ?
    Thymine
  3. In DNA, the base cytosine binds to the base ?
    Guanine
  4. Name the sugar in DNA.
    Deoxyribose
  5. Unduplicated chromosomes consist of ? (a number) double stranded DNA(s) and Protein.
    1
  6. Duplicated chromosomes consist of ? (a number) double stranded DNA(s) and protein.
    2
  7. Half of a duplicated chromosome is called a  ?
    Chromatid
  8. What are two structures that are part of the same duplicated chromosome?
    Sister chromatids
  9. The sister chromatids are held together by a condensed area called the ?
    Centromere
  10. Name the four phases of the cell cycle
    • G1 phase
    • S phase
    • G2 phase
    • Mitosis
  11. Three of the phases (G1, S, G2) of the cell cycle are collectively termed what?
    Interphase
  12. Name the specific phase in the cell cycle in which DNA duplication occurs.
    S Phase
  13. Division of the cytoplasm is referred to as ?
    Cytokinesis
  14. Name the four phases of mitosis
    • Prophase
    • Metaphase
    • Anaphase
    • Telophase
  15. Why is Interphase not part of mitosis?
    That is where the cell is not dividing
  16. Phase in which this occurs: Chromosomes line up on center of spindle
    Metaphase
  17. Phase in which this occurs: Spindle forms
    Prophase
  18. Phase in which this occurs: Spindle disappears
    Telophase
  19. Phase in which this occurs: Sister chromatids split
    Anaphase
  20. Phase in which this occurs: Most cytokinesis occurs
    Telophase
  21. Phase in which this occurs: Nuclear membrane and nucleoli disappear
    Prophase
  22. Phase in which this occurs: Nuclear membrane and nucleoli reappear
    Telophase
  23. Phase in which this occurs: Spindle shortens; Chromatids pulled to opposite polls of cell
    Anaphase
  24. Phase in which this occurs: Chromatin condenses into chromosomes
    Prophase
  25. Phase in which this occurs: Chromosomes unwind into chromatin
    Telophase
  26. Phase in which this occurs: Cleavage furrow can be seen
    Telophase
  27. Telophase is the opposite of ?
    Prophase

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