Biology 9.2

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9 Terms

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Name the phases of the cell cycle
Prophase, metaphase, anaphase, telophase
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Prophase
Preparation: nuclear membrane and nuckeolis disappear, chromatin condenses into chromosomes, spindle apparatus forms/centrioles spread out, spindle fibers attatch to centromere
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Metaphase
Middle: chromosomes aligns in middle of cell
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Anaphase
Apart/away: sister chromatids are pulled apart and cell begins to lengthen
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Telophase
Two new: chromosomes arrive at opposite ends of the cell, nucleoli reform, spindle apparatus falls apart
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What should you look for when trying to identify which stage of mitosis a cell is in?
Condition and location of DNA
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What is a chromosome?
Dense, tightly wound DNA that is seen in mitosis
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What is chromatin?
Loosely wound, tangled DNA that is seen in interphase
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What is apoptosis?
Programmed cell death