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Chapter 5: “ M i t osis

Chapter 5: “ M i t osis. i s. t h e. b a s i s. o f. a s e x u al. r e p rod u ctio n .”.  The. process. in. which. the. contents. of. a. ce l l’s. nucleus  Results. divide. in. t wo d a ug h ter. cells. i d entical. to. the. parent. Phases. of. M i tosis:. Prophase

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Chapter 5: “ M i t osis

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  1. Chapter 5:“Mitosis is the basis of asexual reproduction.”

  2. The process in which the contents of a cell’s nucleus Results divide. in twodaughter cells identical to the parent.

  3. Phases of Mitosis: Prophase Metaphase Anaphase Telophase 1. 2. 3. 4.

  4. The double stranded chromosomes shorten and The thicken. nuclear membrane begins to fade.

  5. X-shaped chromosomes are pulled into a single line across the middle of the cell.

  6. The chromatids are pulled to opposite poles of the cell.

  7. The nuclear membrane forms around each set of chromosomes. The cell is ready to divide into two separate cells.

  8. Animal cell Plant cell

  9. Only one parent is involved. Offspring are identical to the parent. Most reproduce quickly and in large numbers.

  10. 1. Binary Fission A single parent cell replicates its genetic material and divides into two equal parts.

  11. Amoeba

  12. Bacteria

  13. 2. Budding Part of the cell pushes outward to form an outgrowth or bud. The bud pinches off to form the new offspring identical to parent. Not all buds break away.

  14. yeast

  15. Hydra

  16. When an organism breaks apart each as a result of injury, fragment then develops into a clone of its parent.

  17. Sea Stars

  18. Japanese Knotweed

  19. Occurs when special cells, in plants and roots, divide repeatedly to form structures eventually that will develop into plants identical to the parent.

  20. Potato Sprouts

  21. Strawberry Runners

  22. Tulip Bulbs

  23. A sporeis a reproductive cell that grows into a new individual by mitosis. Light inweight. Rely on water, or wind to carry spores away from parent plant.

  24. Bread Mold Spores

  25. Large colonies Large # of offspring are produced quickly. can form to out- compete.

  26. Energy not is Large # of offspring mean the required to species may survive when conditions change find a mate.

  27. Offspring Those produced close together must compete. are genetic clones. Negative mutations can destroy large #s.

  28. Unfavorable conditions can wipe out entire colonies.

  29. Core Lab Activity 5-2B Pg. 162-4 “Determining the Best Conditions for Yeast Reproduction”

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