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Spindle apparatus

AP Bio Mitosis/Meiosis Key Terms

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AP Bio Mitosis/Meiosis Key Terms Genome Chromosome Somatic Cell Gamete Chromatin Sister Chromatid Centromere Mitosis Cytokinesis Meiosis Meiosis 1, 2 Mitotic Phase (M) Interphase G1 Phase S Phase G2 Phase Prophase Prometaphase Metaphase Anaphase Telophase Mitotic Spindle Centrosome Aster Kinetochore Metaphase Plate Cleavage Cleavage Furrow Cell plate Binary Fission Cell cycle control system Checkpoint G0 Phase Cyclin Cyclin dependent kinases MPF Growth Factors Density - dependent inhibition Anchorage dependence Transformation Benign tumor Malignant tumor Metastasis
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Campbell9EdChapter12CellCycle

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The Cell Cycle Chapter 12 Overview: The Key Roles of Cell Division The ability of organisms to produce more of their own kind best distinguishes living things from nonliving matter The continuity of life is based on the reproduction of cells, or cell division ? 2011 Pearson Education, Inc. In unicellular organisms, division of one cell reproduces the entire organism Multicellular organisms depend on cell division for Development from a fertilized cell Growth Repair Cell division is an integral part of the cell cycle, the life of a cell from formation to its own division ? 2011 Pearson Education, Inc. Figure 12.2 (a) Reproduction of an amoeba (b) Growth and development of a sand dollar embryo (c) Tissue renewal in dividing bone marrow cells 20 ?m 100 ?m 200 ?m

Principles of Biology Macmillan Chapter 11

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Biology Chapter 11 Cell Division: 11.1 A) Cell Division Cell Division: the process by which a single cell becomes two daughter cells Prokaryotic cells divide by binary fission Eukaryotic cells divide by Mitosis and Cytokinesis Ori = Origin of replication (code for replication ) B) Binary Fission FtsZ, a protein it encodes forms a ring at the site of constriction where the new cell wall forms between the two daughter cells (very similar to Tublin) Cell Division in bacteria and archaeon?s occurs by binary fission Together, mitosis and cytokinesis are known as mitotic cell division. M phase (mitosis and cytokinesis) alternates with interphase, which consists of G1, S (synthesis), and G2?phases. These four stages together constitute the cell cycle.

ap_bio_chap_9_cell_cycle.ppt

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0 9 The Cell Cycle Overview: The Key Roles of Cell Division The ability of organisms to produce more of their own kind best distinguishes living things from nonliving matter The continuity of life is based on the reproduction of cells, or cell division ? 2014 Pearson Education, Inc. Figure 9.1 Reproduces the entire organism in unicellular organisms Enables multicellular eukaryotes to develop from a single cell and, once fully grown, to renew, repair, or replace cells as needed Is an integral part of the cell cycle, the life of a cell from formation to its own division ? 2014 Pearson Education, Inc. Cell Division Concept 9.1: Most cell division results in genetically identical daughter cells

Ch. 12 Quick Notes

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THE CELL CYCLE-Chapter 12 ? Ability to reproduce = one characteristic of living things ? Continuity of life based on the reproduction of cells ? Cell division functions in reproduction, growth, and repair? UNICELLULAR ORGANISMS use cell division for reproduction? MULTICELLULAR ORGANISMS use cell division to:? -repair/renew cells that die from normal wear and tear? -grow and develop from a single fertilized egg (zygote)? -reproduce asexually (EX: plants grow by cuttings) ? Results in genetically identical daughter cells ? DNA molecules packaged into chromosomes ? GENOME= cell?s genetic information Prokaryotes genome - single circular loop of DNA Eukaryotes - several DNA molecules in multiple chromosome bundles

Cell Cycle

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Chapter 12: The Cell Cycle Overview: The Key Roles of Cell Division the continuity of life is based upon the reproduction of cells, or cell division unicellular organisms reproduce by cell division multicellular organisms depend on cell division for development (from a fertilized cell), growth and repair the cell division process is an integral part of the cell cycle, the life of a cell from its formation from the division of the parent cell to its own division Concept 12.1: Cell division results in two identical daughter cells cells duplicate their genetic material before they divide, ensuring that each daughter cell receives an exact copy of genetic material, DNA Cellular Organization of the Genetic Material a cell?s endowment of DNA, its genetic information, is called its genome

Campbell Biology Chapter 12 Outline

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Mica Piro Chapter 12: The Cell Cycle Most Cell Division Results in Genetically Identical Daughter Cells (12.1) Cellular Organization of the Genetic Material A cell?s endowment of DNA, its genetic information, is called its genome A prokaryotic genome is often a single DNA molecule Eukaryotic genomes usually consist of a number of DNA molecules All of this DNA has to be copied, or replicated, before the cell can divide to form genetically identical daughter cells, and then the 2 copies must be separated so that each daughter cell ends up with a complete genome The replication and distribution of so much DNA is manageable because the DNA molecules are packaged into structures called chromosomes, because they take up certain dyes used in microscopy

AP Biology Chapter 12 Reading Guide

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AP Biology Name _________________________ Chapter 12 Guided Reading Compare and contrast the role of cell division in unicellular and multicellular organisms. ??? Define the following terms: Genome? Chromosomes? Somatic cells? Gametes? Chromatin? Sister chromatids? Centromere? Mitosis? Cytokinesis? Meiosis? List the activities of the cell cycle: Mitotic phase? Interphase? G1 phase? G2 phase? S phase? Define the following terms: Mitotic spindle? Centrosome? Microtubule organizing center? Aster? Kinetochore? Label below:?? Label the diagram below (phases, structures, etc):?????????????? Contrast cytokinesis in plant and animal cells.??? Define binary fission and label the diagram below:?????? Discuss the hypothetical evolution of mitosis.?????

chapter 12 note

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Chapter 12 The Cell Cycle and Mitosis The Key Roles of Cell Division Cell division functions in reproduction, growth, and repair Unicellular organisms (ex. Amoeba) will divide to reproduce entire organisms Cell division also will allows a multicellular organism to develop from a single cell The Key Roles of Cell Division DNA is passed from one generation of cells to the next without dilution. -cell duplicates it DNA - moves the 2 copies to opposite ends of the cell - and then splits into 2 daughter cells The Key Roles of Cell Division Concept 12.1 Cell Division distributes identical sets of chromosomes to daughter cells A cell?s genetic material is called its genome - prokaryote = single long DNA strand - eukaryote = number of DNA molecules Concept 12.1

Cell Cycle

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Biology
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Cell Biology
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Interphase
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Cytokinesis
Spindle apparatus
Chromosome
health

Cell Growth and Reproduction Cell Reproduction All cells come from preexisting cells. Cell division results in two cells that are identical to the parent cell. New cells are constantly being produced. Scientists noticed certain structures that appeared just before cell division and disappeared after. Chromosomes: structures which contain DNA and become darkly colored when stained For most of a cell?s life, chromosomes exist as chromatin Chromatin: long strands of DNA wrapped around proteins called histones Histones are grouped in bunches called nucleosomes The Cell Cycle Cell cycle: the sequence of growth and division of a cell Two general periods of the cycle: growth and division The majority of a cell?s life is spent in the growth period known as interphase

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