Biology Final Lab

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Lily_Dee_Mee
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120771
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Biology Final Lab
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2011-12-04 18:56:58
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Mitosis and Meiosis
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  1. What are the structural and functional units of living organisms?
    cells
  2. What two process does cell division consist of?
    nuclear division; cytokinesis
  3. What is nuclear division?
    mitosis and meiosis
  4. What is the division of the cytoplasm and associated parts?
    cytokinesis
  5. What does nuclear division of mitosis result in?
    two identical daughter cells
  6. What kind of cells does multicellular organisms have?
    red blood cells; muscle cells; liver cells
  7. What is different about Meiosis's nuclear division compared to Mitosis?
    the daughter cells produced is reduced to one half of the parent cell.
  8. What occurs as plant cell division and animal cell division?
    mitosis
  9. What are the stages in plant cell division?
    interphase, (PMAT) Prophase, Metaphase, Anaphase, Telophase, and daughter cells
  10. What is a structure formed in the cell during mitosis that has rays connected to the the centrosome?
    Asters
  11. What is the DNA that is present in a mass that replicates?
    Chromatin
  12. What is in an interphase nucleus where a mass of RNA and proteins are formed into subunits of ribosomes?
    nucleolus
  13. What is the double membrane surrounding the nucleus in the cell?
    nuclear membrane
  14. What is tightly coiled DNA that is visibly rod shaped?
    chromosomes
  15. what is the one strand of a double stranded chromosome called?
    chromatid
  16. What is a small,cylindrical cell organelle in the cytoplasm near the nucleus that divides during mitosis?
    centrioles
  17. What is of a eukaryotic chromosome with a constricted region having binding sites for microtubles?
    centromeres
  18. What is a common partition between adjacent cell?
    middle lamella
  19. What is essentially seen as the same as interphase?
    daughter cells
  20. How mant daughter cells does meiosis produce?
    four
  21. What are the two nuclear divisons in meiosis?
    • Meiosis1 (1st division) the reduction division.
    • Meiosis2 ( 2nd division) separates the chromatids.
  22. What are chromosomes that come together in pair that look alike and carry genes for the same traits?
    homologous chromosomes or pairs.
  23. What is diploid?
    • 2N two examples of each chromosome.
    • before meiosis
  24. What is Haploid?
    • 1N one ex. of each chromosome
    • after meiosis.
  25. What does the Meiosis reproduction do?
    increases the genetic variation in the pop.
  26. What is the process where each pair of homologous chromosomes come together during Meiosis 1?
    synapsis
  27. What is the process where chromatid of homologous chromosomes may exchange parts?
    crossing over
  28. What is the difference between mitosis and cytokinesis?
    mitosis is nuclear division and cytokinesis is cytoplasmic divison.
  29. What process is busily occuring in a meristem?
    mitosis and cytokinesis are occuring
  30. What is the region of cell divison that lies behind the root cap?
    meristem
  31. What is located at the root tip; is non dividing; and protects underlying cells?
    root cap
  32. How can crossing over introduce additional genetic variability into the products of meiosis?
    it results in new combinations of genes.
  33. What is the formation of sperm in testes of male?
    spermatogenesis
  34. What is the formation of ova or eggs in ovaries of female?
    oogenesis

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