cell cycle
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what part of a chromosome directs the production of rna and protiens | gene segment
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| where do cells spend the most time in the cell cycle | interphase
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| how many checkpoints does the cell cycle have | three
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| name the three checkpoints o the cell cycle | G1 G2 mitosis
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| what are the three reasons cells divide | cell size cell matinence growth and repair
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| what is the purpouse/function of a centromere | to hold to sister chromatids together until ready to divide
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| what stage happens before G1 | cytokinesis
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| what is a chromatid | strands of duplicated gene
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| correct sequence of cell cycle | G1, S, G2, Mitosis, Cytokinisis
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| where does dna replication occur | S phase
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| how many steps are in mitosis | Four
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| name the steps of mitosis | prophase metaphase anaphase telophase
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| what are the first three phases of cell cycle known as | interphase
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| what phase are chromosomes lined up in the middle of the cell | metaphase
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| what phase does a nuclear membrane form around dna | telophase
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| what phase does the nuclear membrane disappear | prophase
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| what phase do the sister chromosomes separate and are pulled to opposite poles | anaphase
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| what is cell division controlled by in eukaryote cells | proteins signals from surrounds cells and organs environmental changes
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| what happens to normal cells in the cell cycle that causes them to be cancer cells | cells ignore checkpoints
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| when then cell is about to divide dna is packed into coiled structures called | chromosomes
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| sequence of events that occurs from one cell division to the next | cell cycle
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| what is happening in G1 | cell grows and builds organelles
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| what happens in the S phase | dna is copied
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| what happens in G2 | cell grows and prepares to divide
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| what happens to the nucleus in mitosis | forms daughter nuclei
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| how many daughter cells are made in mitosis | Two
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| what happens in cytokinesis | division of cytoplasm
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cadencia2003
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