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increasing cell size and grow Interphase Chromosomes are replicated Production of many organelles and molecules Prophase nuclear membrane dissolves wind DNA ( chromatin) into chromosomes chromosomes line up in the middle of the nucleus Metaphase Anaphase attaching spindle fibers from each new daughter cell pole to each chromosome at the centromere one-half of each chromosome (chromatid) moves to opposite end of the cell spindle fibers pull chromosomes apart Nuclear membrane forms Telophase DNA unwinds and two nuclei form Mitosis Number of cell division? Exchange of genetic material between chromosomes? Number of functioning cell produced from the original? Number of chromosomes of daughter cells compare to parent cells How is the genetic material of final cells produced? Function of cells produced? One No Two daughter cells Equal number In human is 46 chromosomes Identical as the original Growth or replacement of body cells Same as the parent cells 1. Label chromosome, chromatin, and DNA on the picture. 2. Label centromere and chromatid on the chromosomes. 3. How are chromatids and chromosomes similar and different? 4. How many chromosomes do human cells contain? and carrot cells? and fruit flies? Mitosis animation. Excellent. http://www.johnkyrk.com/mitosis.html Mitosis / meiosis animation http://www.pbs.org/wgbh/nova/baby/divi_flash.html Mitosis movies http://www.bio.unc.edu/faculty/salmon/lab/mitosis/mitosismovies.html Meiosis and mitosis interactive http://www.biologyinmotion.com/cell_division/index.html How cells divide http://highered.mcgrawhill.com/sites/0072437316/student_view0/chapter11/animations.html# 5. Label in the pictures a. Nucleus b. Chromosomes c. Chromatin d. Nuclear membrane e. Chromatids f. Spindle fiber g. Centromere Chromatin Nuclear membrane Chromatids Spindle Fiber Centromere Nucleus Chromosomes Section 10-2 Cell Division Mitosis and Cytokinesis Interphase Prophase Spindle forming Centrioles Nuclear envelope Chromatin Centromere Chromosomes (paired chromatids) Centriole Spindle Centriole Cytokinesis Individual chromosomes Nuclear envelope reforming Telophase Anaphase Metaphase metaphase cytokinesis metaphase prophase telophase interphase prophase telophase anaphase interphase anaphase EVENTS CELL CYCLE PHASE one-half of each chromosome (chromatid) moves to opposite end of the cell anaphase Chromosomes are replicated interphase spindle fibers pull chromosomes apart anaphase nuclear membrane dissolves prophase increasing cell size and grow interphase Production of many organelles and molecules interphase Cell splits with its own set of chromosomes chromosomes line up in the middle of the nucleus attaching spindle fibers from each new daughter cell pole to each chromosome at the centromere wind DNA ( chromatin) into chromosomes Nuclear membrane forms DNA unwinds and two nuclei form cytokinesis metaphase metaphase prophase telophase telophase 5. Label in the pictures a. Nucleus b. Chromosomes c. Chromatin d. Nuclear membrane e. Chromatids f. Spindle fiber g. Centromere 5. Label in the pictures a. Nucleus b. Chromosomes c. Chromatin d. Nuclear membrane e. Chromatids f. Spindle fiber g. Centromere prophase Daughter cells cytokinesis metaphase cytokinesis centromere Centrosome or centriole prophase mitosis chromosomes telophase anaphase anaphase telophase metaphase interphase Centrioles or centrosomes Spindle fibers attach to centromeres, divide chromosomes into two chromatids, and pull apart chromatids to opposite poles Yes, or during the telophase Metaphase cytokinesis Cytoplasm and organelles The genetic material is identical Daughter cells contain the same genetic information as the original cell metaphase cytokinesis metaphase prophase telophase interphase prophase telophase anaphase interphase anaphase anaphase prophase telophase metaphase Prophase Anaphase Metaphase Telophase • wind DNA ( chromatin) into chromosomes • nuclear membrane dissolves • Cell splits with its own set of chromosomes • One-half of each chromosome (chromatid) moves to opposite end of the cell • Spindle fibbers pull chromosomes apart • chromosomes line up in the middle of the nucleus at the centromere • DNA unwinds and two nuclei form Root Tip of an Onion
