From Seed to Seed: |
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1) During early prophase, the chromatin appear as long threads scattered throughout the nucleus. 2) In mid prophase, the chromatin becomes condensed into distinct chromosomes. Because of replication, each chromosome is composed of two genetically identical and parallel strands joined at their centers. These strands are called sister chromatids. The location at which the sister chromatids are joined is called the centromere. 3) In late prophase, the nuclear envelope begins to disintegrate. 4) The sister chromatids line up near the center of the cell in metaphase... 5) ...and pull apart from one another, toward opposite ends of the cell, in anaphase. 6) During telophase, mitosis is completed as a cell plate is formed and two identical daughter cells are produced. These daughter cells are diploid and are now effectively parent cells, ready to divide. |
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