Materias: Acceso restringido con credenciales UPSA

“…Advances in Plant Meiosis…”

Materias:

Materias:

Tabla de Contenidos: “…CICLO CELULAR; MITOSIS; MEIOSIS; DIFERENCIAS ENTRE LA MITOSIS Y LA MEIOSIS; RELACIÓN ENTRE MEIOSIS Y REPRODUCCIÓN; XIV. …”

“…Se estableció que las células BGC-1 producen factor/es de naturaleza soluble y lábil, que actúan a través de las células del cumulus para inhibir el reinicio espontáneo de la meiosis in vitro. Esta inhibición es completamente reversible y, bajo el efecto inhibitorio de las células BGC-1, el reinicio de la meiosis puede ser inducido por FSH. …”
Enlace del recurso

Tabla de Contenidos: “…BIOLOGÍA: LA CÉLULA; ÍNDICE; 1 LA CÉLULA; Células procariotas y células eucariotas; Células procariotas; Células eucariotas; Células eucariotas animales; Células eucariotas vegetales; 2 REPRODUCCIÓN CELULAR; Introducción; Meiosis; Algunos conceptos de genética; Fecundación y desarrollo; 3 ORGANIZACIÓN DE LOS SERES VIVOS; Introducción; Niveles de organización; 4 ECOLOGÍA; Introducción; Cadenas alimentarias; Pirámides ecológicas; Ciclos biogeoquímicos; La sucesión; Biomas; BIBLIOGRAFÍA…”

“…To understand the function of spindle actin in oocyte meiosis, we have developed high-resolution and super-resolution live and immunofluorescence microscopy assays that are described in this chapter…”

Tabla de Contenidos: “…REPRODUCCIÓN CELULAR; 8.1 LOS DOS TIPOS DE REPRODUCCIÓN CELULAR; 8.2 EL CICLO CELULAR: LAS CÉLULAS SE REPRODUCEN DIVIDIÉNDOSE EN DOS; Mitosis; Citocinesis; Significado biológico de la mitosis; Variaciones cíclicas de la cantidad de ADN; La reproducción celular debe estar bajo control; 8.3 MEIOSIS; La primera profase y la recombinación de genes en los cromosomas; La primera metafase y la permutación de los cromosomas; El resto de la meiosis; Comparación entre mitosis y meiosis; El significado biológico de la meiosis…”

Tabla de Contenidos: “…Cover -- Contents -- Foreword -- Preface -- Acknowledgements -- About the Author -- Chapter 1: Practical Application of Genetics in Nursing and Roles of a Nurse -- Roles of a Nurse -- Career Focus -- Review Question -- Chapter 2: Review of Cellular Division: Mitosis and Meiosis -- Introduction to Prokaryotic and Eukaryotic Cell -- Shape -- Size -- Number -- Cell wall -- Plasma membrane -- Cytoplasm -- Nucleus -- Cell Division -- An Overview of the Cell Cycle -- The Mechanics of Cell Division -- An overview of the M phase -- Cytoskeletal machines perform both mitosis and cytokinesis -- Two mechanisms help ensure that mitosis always precedes cytokinesis -- Mitosis in Detail -- Prophase -- Prometaphase -- Metaphase -- Anaphase -- Telophase -- Cytokinesis -- Meiosis -- Introduction -- Meiosis I -- Interphase I -- Prophase I -- Leptotene -- Zygotene -- Pachytene -- Diplotene -- Diakinesis -- Metaphase I -- Anaphase I -- Telophase I -- Meiosis II -- Interphase II -- Prophase II -- Metaphase II -- Anaphase II -- Review Questions -- Chapter 3: Structure and Organization of Genetic Material -- Characteristics and Structure of DNA and Chromosomes-DNA Packaging and Chromosome Condensation -- Structure of chromosomes -- Chromosomal DNA and its packaging in the chromatin fibre -- Eukaryotic DNA is packaged into a set of chromosomes -- Nucleosomes are the basic unit of eukaryotic chromosome structure -- Forms of chromosomes-metacentric, submetacentric, and acrocentric -- Chromosomes and Sex Determination -- XX-XY sex determination in humans -- The role of sex chromosomes in phenotype and fertility -- Review Questions -- Chapter 4: Errors in Transmission -- Overview of Chromosome Morphology -- Types of chromosome mutations -- Structural chromosomal abnormalities -- Chromosome rearrangements -- Duplications -- Deletions -- Inversions -- Translocations…”

“…There is a focus on specific biological processes, inevitably on mitosis, but also on bacterial division, meiosis, cytokinesis, axonal transport, and nuclear migration…”

“…It occurs in the testis in a stepwise fashion so that committed spermatogonia develop into spermatocytes and enter meiosis to produce round spermatids. These undergo a morphological transformation (spermiogenesis) into mature spermatids (i.e.: spermatozoa), which are differentially released from Sertoli cells (spermiation) depending on the species. …”

Tabla de Contenidos: “…The study of life -- The chemical foundation of life -- Biological macromolecules -- Cell structure -- Structure and function of plasma membranes -- Metabolism -- Cellular respiration -- Photosynthesis -- Cell communication -- Cell reproduction -- Meiosis and sexual reproduction -- Mendel's experiments and heredity -- Modern understandings of inheritance -- DNA structure and function -- Genes and proteins -- Gene expression -- Biotechnology and genomics -- Evolution and the origin of species -- The evolution of populations -- Phylogenies and the history of life -- Viruses -- Prokaryotes : bacteria and archaea -- Protists -- Fungi -- Seedless plants -- Seed plants -- Introduction to animal diversity -- Invertebrates -- Vertebrates -- Plant form and physiology -- Soil and plant nutrition -- Plant reproduction -- The animal body : basic form and function -- Animal nutrition and the digestive system -- The nervous system -- Sensory systems -- The endocrine system -- The musculoskeletal system -- The respiratory system -- The circulatory system -- Osmotic regulation and excretion -- The immune system -- Animal reproduction and development -- Ecology and the biosphere -- Population and community ecology -- Ecosystems -- Conservation biology and biodiversity -- The periodic table of elements -- Geological time -- Measurements and the metric system…”

Tabla de Contenidos: “…The study of life -- The chemical foundation of life -- Biological macromolecules -- Cell structure -- Structure and function of plasma membranes -- Metabolism -- Cellular respiration -- Photosynthesis -- Cell communication -- Cell reproduction -- Meiosis and sexual reproduction -- Mendel's experiments and heredity -- Modern understandings of inheritance -- DNA structure and function -- Genes and proteins -- Gene expression -- Biotechnology and genomics -- Evolution and the origin of species -- The evolution of populations -- Phylogenies and the history of life -- Viruses -- Prokaryotes : bacteria and archaea -- Protists -- Fungi -- Seedless plants -- Seed plants -- Introduction to animal diversity -- Invertebrates -- Vertebrates -- Plant form and physiology -- Soil and plant nutrition -- Plant reproduction -- The animal body : basic form and function -- Animal nutrition and the digestive system -- The nervous system -- Sensory systems -- The endocrine system -- The musculoskeletal system -- The respiratory system -- The circulatory system -- Osmotic regulation and excretion -- The immune system -- Animal reproduction and development -- Ecology and the biosphere -- Population and community ecology -- Ecosystems -- Conservation biology and biodiversity -- The periodic table of elements -- Geological time -- Measurements and the metric system…”

“…It covers introduction, chromosomal polymorphism, polytene chromosomes, chromosomal inversion, chromosomal evolution, cell cycle regulators in meiosis and nongenetic transgenerational inheritance in Drosophila. …”

Tabla de Contenidos: “…Preparing developmentally competent eggs -- Nuclear maturation: chromatin modification -- Maturation cues: to resume or not to resume meiosis -- Polarity proteins regulate the cytoskeleton and meiosis -- Heat shock factor 1: promoting nuclear maturation and developmental competence -- Piwis: silencing to prevent aneuploidy -- mlh1/ mps1: mismatch repair and meiosis -- Cytoplasmic maturation: clearing the yolk in fish --…”

“…Spermatogenesis requires radical restructuring of germline chromatin at multiple stages, involving coordinated waves of DNA methylation/demethylation, histone modification, and the replacement and removal that occurs before, during, and after meiosis. This Special Issue will draw together papers that address all aspects of chromatin organization and dynamics in the male germ line, in humans, and in model organisms. …”

Tabla de Contenidos: “…Composición Química de los Seres VivosCapítulo 5; Nociones Generales de Célula; Membrana Celular; Ciclo Celular.; Mitosis.; Meiosis.; Capítulo 6; La Multicelularidad; Se aprovecha la Materia y la Energía: La Nutrición; Capítulo 7; Genética y Herencia; Las Contribuciones de Gregorio Mendel; Dominancia y Recesividad; Genotipo y Fenotipo.; Aberraciones Cromosómicas; Capítulo 8; Sistema Reproductor; Capítulo 9; SISTEMA ENDOCRINO; Capítulo 10; Embriología; Gemeralidad; Desarrollo Prenatal; Teratología; Clonación; Capítulo 11; Introducción; Hacia una Idea de Cambio; Agentes de Cambio…”

Tabla de Contenidos: “…Otras características7 GENÉTICA; Definición; División celular; Cromosomas; Mitosis; Genes. Su función; La meiosis; Formación de los óvulos: génesis; Fecundación; 8 EVOLUCIÓN; Introducción; Los fósiles; Selección natural; BIBLIOGRAFÍA…”