Meiosis

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Page 1 of 2 Mitosis continued Page 2 of 2 Student Worksheet?Biology Strand: Molecules and Cells Name___________________________ Date__________________ School_________________ Student?please print this worksheet and complete it as you interact with the tutorial. The completed worksheet should be turned in to your assigned teacher. Tutorial: Mitosis List the major things that happen during each phase of mitosis: Prophase_____________________________________________________________ ____________________________________________________________________ Prometaphase/Metaphase____________________________________________________________________________________________________________________

AP Bio Mitosis/Meiosis Key Terms

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cell cycle

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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Pearson Ch 13 - Meiosis and Sexual Life Cycles

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Developmental biology

Homologous chromosome

Ploidy

Gamete

Sister chromatids

Chromatid

Ch 13: Meiosis and sexual life cycles Concept 13.1: Offspring acquire genes from parents by inheriting chromosome Comparison of Asexual and Sexual Reproduction In asexual reproduction, a single individual passes genes to its offspring without the fusion of gametes A clone is a group of genetically identical individuals from the same parent In sexual reproduction, two parents give rise to offspring, through the fusion of gametes, that have unique combinations of genes inherited from the two parents Concept 13.2: Fertilization and meiosis alternate in sexual life cycle Sets of Chromosomes in Human Cells Human somatic cells (any cell other than a gamete) have 23 pairs of chromosomes The two chromosomes in each pair are called homologous chromosomes, or homologs

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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Homologous chromosome

cell division

Spindle apparatus

Chromosome

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_10_meiosis.ppt

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Chromatid

Homologous chromosome

Sister chromatids

Anaphase

Ploidy

Chromosome

0 10 Meiosis and Sexual Life Cycles Overview: Variations on a Theme Living organisms are distinguished by their ability to reproduce their own kind Heredity is the transmission of traits from one generation to the next Variation is demonstrated by the differences in appearance that offspring show from parents and siblings Genetics is the scientific study of heredity and variation Figure 10.1 Concept 10.1: Offspring acquire genes from parents by inheriting chromosomes In a literal sense, children do not inherit particular physical traits from their parents Inheritance of Genes Genes are the units of heredity and are made up of segments of DNA Genes are passed to the next generation via reproductive cells called gametes (sperm and eggs) Most DNA is packaged into chromosomes

ap_bio_chap_9_cell_cycle.ppt

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Spindle apparatus

Cell growth

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

AP Bio Lab 7

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cell cycle

Interphase

Maturation promoting factor

AP LAB 7: CELL DIVISION: MITOSIS AND MEIOSIS How do eukaryotic cells divide to produce genetically identical cells or to produce gametes with half the normal DNA? BACKGROUND One of the characteristics of living things is the ability to replicate and pass on genetic information to the next generation. Cell division in individual bacteria and archaea usually occurs by binary fission. Mitochondria and chloroplasts also replicate by binary fission, which is evidence of the evolutionary relationship between these organelles and prokaryotes. Cell division in eukaryotes is more complex. It requires the cell to manage a complicated process of duplicating the nucleus, other organelles, and multiple chromosomes. This process, called the cell cycle, is divided

Ch. 12 Quick Notes

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health

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

Chp 12 Bio

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