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Practicetest5edtc634162carmona

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  • Color scheme was chosen to accompany the white background of the picture files provided and the transition selected was used to simulate particles dissipating.

Transcript

  • 1.
    • Science
    • September 2011
    • Mr. Swartz
  • 2.
    • DNA has replicated, but has not formed the condensed structure of chromosome. They remain as loosely coiled chromatin.
    • Nuclear membrane still intact to protect the DNA molecules from undergoing mutation.
  • 3.
    • The DNA molecules progressively shorten and condense by coiling, to form chromosomes.
    • The nuclear membrane and nucleolus are no longer visible
    • The spindle apparatus has migrate to opposite poles of the cell.
  • 4.
    • The spindle fibers attach themselves to the centromeres of the chromosomes The fibers align the chromosomes at the equatorial plate.
  • 5. All photographs from http://library.thinkquest.org/C0118084/Gene/Chromosomal_Inheritance/StagesMitosis.htm Slide Show created by Corina Carmona
    • The spindle fibers shorten and the centromere splits
    • The chromosomes reach the poles of their respective spindles.
    • Nuclear envelope reform before the chromosomes uncoil.
    • The spindle fibers disintegrate.