BI+107+Chapter+12

BI+107+Chapter+12 - Chapter 12 Mitosis and the Cell Cycle...

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Unformatted text preview: Chapter 12 Mitosis and the Cell Cycle Why make a new cell? Does it need to be an exact copy or should it be different from the original? Fig. 12-2 100 m 200 m 20 m a) Assexual Reproduction (b) Growth and development (c) Tissue renewal Fig. 12-5 S (DNA synthesis) M I T O T I C ( M ) P H A S E M i t o s i s C y t o k i n e s i s G 1 G 2 Phases of the Cell Cycle Interphase 90% of the time G 1 G S G 2 Mitosis 10% of the time Prophase Metaphase Anaphase Telophase/Cytokinesis Fig. 12-4 0.5 m Chromosomes Chromosome duplication (including DNA synthesis) Chromo- some arm Centromere Sister chromatids DNA molecules Separation of sister chromatids Centromere Sister chromatids Fig. 12-UN3 Fig. 12-3 20 m Fig. 12-6b Prometaphase Prophase G 2 of Interphase Nonkinetochore microtubules Fragments of nuclear envelope Aster Centromere Early mitotic spindle Chromatin (duplicated)...
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BI+107+Chapter+12 - Chapter 12 Mitosis and the Cell Cycle...

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