LS 6.1.5

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Across
  1. 4. During this phase of mitosis, new nuclear membranes are formed and the cell begins to pinch in the middle to form 2 new daughter cells.
  2. 5. In meisosi, onc ell with the full number of chromosomes becomes this number of cells.
  3. 6. during this stage of meiosis II, the spindle fibers attach to the chromatids and they line up at the equator.
  4. 8. Metaphase in meiosis is exactly the same as in mitosis except that entire chromosomes attach to one pole or the other with the _____ chromatids still attached.
  5. 10. During this, homologous chromosomes (one from the father and one from the mother) join.
  6. 11. The point at which sister chromatids are attached to each other.
  7. 12. During this stage of meiosis II, new spindles form at the poles.
  8. 16. During this stage of meiosis, chromosomes separate adn gather at seperate poles.
  9. 17. The first phase of mitosis during which the x shaped chromatids condense into rodlike structures and the cell membrane disappears.
  10. 18. Members of a chromosome pair are called _____ chromosomes.
  11. 21. In meiosis, the nubmer of chromosomes found in each gamete is reduced to ____ of the original number.
  12. 22. The cell division process in which new somatic cells are formed.
  13. 24. During this stage of meiosis, the spindles are completed and extend to teh poles and the chromosomes all line up at the equator.
  14. 26. The final stage of cell division where two new daughter cells are formed.
  15. 27. Another name for somatic cells.
  16. 28. During this stage of meiosis, a membrane divides two new nuclei creating two cells with half the chromosomes.
  17. 30. A cell that has the full number of chromosomes for that organism.
Down
  1. 1. During this phase of mitosis, the spindle fibers pull the chromatids apart to opposite ends of the cell.
  2. 2. The structures found in the nuclei of cells that carry most of a cell's genes.
  3. 3. The second phase of mitosis during which the chromosomes line up at the center of the cell and are attached to spindle fibers.
  4. 7. In meiosis, cells that produce eggs and sperm divide ____ in succession.
  5. 9. The phase during which a cell grows and its nucleus produces a copy of each chromosome.
  6. 12. Four chromatids are attached together during this phase of meiosis.
  7. 13. During this phase of meiosis II, the sister chromatids move to opposite poles.
  8. 14. During this phase of meiosis II, the nuclear membrane forms around the chromosomes.
  9. 15. One of the two identical strands of a replicated chromosome.
  10. 19. The reporductive cells that divide to make new cells.
  11. 20. Crossing- over is a way that genese of a mother and a father are mixed so that the offspring is a combinatino of traits in both parents producing more of this.
  12. 23. In meiosis, the new cells have half the usual number of these.
  13. 25. The cell division process in which new gamete cells are formed.
  14. 29. If gamets were made by mitosis, the number of chromosomes in offspring would keep______.
  15. 31. The mixture of DNA and protein that makes up a chromosome.