cell division
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| what are the two stages of cell division. | mitosis and cytokinesis
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| what is the function of the mitotic spindle. | help separate the chromatids
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| what is the cell cycle. | the series of events that the cell goes through to grow and divide
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| what are the four phases of mitosis | 1.prophase 2.metaphase 3.anaphase 4.telophase
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| what happens during prophase | the chromosomes become visible the centrioles take up positions on opposite sides of the nucleus
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| what happens during metaphase | the chromosomes line up across the center of the cell
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| what happens during anaphase | the chromosomes move until they form two groups near the poles of the spindle
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| what happens during telophase | a nuclear envelope re forms around each cluster of chromosomes the nucleolus becomes visible in each daughter nucleus
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| what is cytokinesis | the division of the cytoplasm of the cell following the division of the nucleus
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| how does cytokineses occur in most animal cells | the cell forms a cleavage furrow that tightens and splits the cell
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| in eukaryotic cells what are the two main stages of cell division | division of the cells nucleus 2. division of the cells cytoplasm
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| when chromosomes become visible at the begining of cell division what does each chromosome consist of | two identical sister chromatids
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| the division of the cells nucleus during the m phase of the cell cycle is called | mitosis
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| interphase is divided into what three phases | 1.g1 phase 2. s phase 3. g2 phase
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| what happens during the g1 phase | increase in-size creates new proteins and organelles
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| what happens during the s phase | chromosomes are replicated
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| what happens during the g2 phase | organelles and molecules required for cell division are produced
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| which cells undergo cell division | both prokaryotic and eukaryotic cells
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| what is the correct order of the cell cycle in an eukaryotic cell | g1-s-g2-m
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| the correct order of a prokaryotic cell division is | growth-DNA replication-chromosome segregtion
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| what happens during mitosis | the nucleus of the cell divides
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| chromatid | Either of the two strands joined together by a single centromere
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| centromere | the center of the chromosome where the two chromatids touch
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| chromatin | the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
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| chromosomes | stands of DNA stuffed in 2 chromatids that make an x shape
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| interphase | the period of the cell cycle where the nucleus is not undergoing division
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| cyclin | one of a family of closely related protiens that regulate the cell cycle in eukaryotic cells
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| cancer | an uncontrolled growth of cells with the potential to spread and form colonies elsewhere in the body.
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| growth factor | a substance that affects the growth of a cell
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| tumor | a mass amount of cells that divide abnormally quickly and fail to carry out their usual function
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| embryo | the earliest stage of a developing unborn individual in the uterus
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| stem cell | a cell in the body that can divide to give rise to more cells.
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| differentiation | a process which a less specialized cell becomes more specialized
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| cell division | the division of a cell into two identical daughter cells with the same generic information
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| asexual reproduction | a form of reproduction that doesn't involve miosis
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| sexual reproduction | a form of reproduction involving the mating of a male and female sperm
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| the rate at which materials enter and leave the cell depends on the cells? | surface area
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| in order for a cell to divide successfully the cell must first | duplicate its genetic information
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| if a cell has 12 chromosomes how many chromosomes will each of its daughter cells have after mitosis and cytokenisis | 6
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| in the plant cell what forms midway between the divided nuclei during cytokinesis | cell plate
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| the timing in the cell cycle in eukaryotic cells is believed to be controlled by a group of closely related proteins known as | cyclins
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