Tuesday, January 19, 2010

We started our reproduction unit.Now we are talking about asexual reproduction that go through stages other wise know n as mitosis.We learned they're 4 phases.I'll talk about each one.well this inst a part of mitosis.It is inter phase.Chromosome pairs double.chromosomes appear like threadlike coils.daughter chromosomes copy and change to sister chromotids at the end of the phase.Now mitosis begins at pro phase.Mitosis spindle appears and begin to move to the opposite end of cell.spindle fiber form between the poles.meta phase chromotids attaches to the spindle fibers.IN anaphase chromosome pairs or chromotids attach to spindle fiber and chromotids separate and begin to opposite of the cell in anaphase.int he phase telophase two new cells form Chromosomes appear as a chromotin and mitosis ends and the conclusion cytokensis when the cell membrane moves inward to create two new cells each with its own nucleus with identical replica of their DNA.

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