Growth and Development of Organisms
HS-LS1.B
Expii topics
- Growth and Division of Cells
- Advanced Biology: Mitosis
- Overview of Mitosis
- Advanced Biology: Anaphase
- Advanced Biology: Telophase
- Mitotic Spindle
- Centrosomes and Centrioles
- Spindle Structure and Growth
- Kinetochores
- Advanced Biology: Cytokinesis
- Cleavage in Animal Cells
- Cell Plate Formation in Plant Cells
- Prometaphase
- Advanced Biology: Metaphase
- Advanced Biology: Prophase
- Condensed Chromatin Organization
- Growth and Division of Cells: Sexual Reproduction
- Advanced Biology: Meiosis
- Homologous Chromosomes
- Meiosis I Separates Homologues
- Meiosis II Separates Sister Chromatids
- Crossing-Over
- Overview of Meiosis
- Review of Sexual Reproduction
- Overview of Sexual Reproduction
- Meiosis and Fertilization Convert Haploid and Diploid Cells
- Cell Cycle Control
- Overview of Cell Cycle Control
- Restriction Points (Checkpoints)
- What Is a Checkpoint?
- G1 Checkpoint
- Signals Regulating Cell Cycle
- Growth Factors and Mitogens
- Physical Signals
- Density-Dependent Inhibition
- Anchorage Dependence
- Apoptosis
- The Cell Cycle
- Overview of the Cell Cycle
- G1 Phase
- S Phase
- G2 Phase
- Binary Fission
- Origin of Replication
- All Cells Must Reproduce
- Chromosomes and Chromatids
- Diploid (Somatic) vs. Haploid (Gamete) Cells
- Clonal Reproduction
- Overview: Role of Cells in Sexual Reproduction
- Limitations on Cell Growth
- Cell Differentiation
- Stem Cells
- Somatic Stem Cells
- Embryonic Stem Cells
- Pluripotent vs. Multipotent Stem Cells
- Overview of Stem Cells
- Stem Cells in Medicine
- Clinical Applications of Stem Cells
- Role of Cell Differentiation
- Organizing Cells into Tissues
- Cancer Cells Lose Cell-Cycle Controls
- Origin of Cancerous Cells
- Oncoviruses
- Oncovirus Infection Can Lead to Tumor Formation
- Somatic Mutation
- Mechanisms of Oncogene Hyperactivation
- Environmental Factors
- Radiation Exposure and Cancer
- Carcinogens
- Cancer Transformation Requires an Accumulation of Mutations
- Genes Involved in Cancer
- Oncogenes
- Hyperactivation of Oncogenes Promotes Proliferation
- P53 Gene: Activates Response to DNA Damage
- Cancer Proliferation
- Segregation and Independent Assortment in Meiosis
- Overview of Fertilization
- Activation of the Egg
- Cleavage
- Gastrulation
- What Is Gastrulation?
- Germ Layers
- Ectoderm
- Mesoderm
- Endoderm
- Overview of Gastrulation Steps
- Organogenesis
- Neural Tube Formation
- How Does the Neural Tube Form?
- Neural Crest
- Spina Bifida
- Notochord Formation
- Somites
- Amnion Formation
- Amniotes: Providing an Aqueous Environment
- Establishing Body Axes
- Hox Genes
- Morphogen Gradients
- Human Embryonic and Fetal Development
- Tracking Fetal Development
- Embryonic Development
- Cleavage to Form Blastocyst
- Implantation
- Invasion of Maternal Tissue
- Ectopic Pregnancy
- Gastrulation in Humans
- Conception (Fertilization)
- Organogenesis in Humans
- Second Trimester Development
- Third Trimester Development
- What Is a Virus?
- Diversity of Viruses
- Bacteriophages
- Human Pathogens
- Multicellularity
- Unicellular Life
- Origin of Animals
- Origin of Mammals
- Cancer: Somatic Mutation
- Changes in Chromosome Number
- Origin of Life
- Origin of Self-Replicating Molecules
- RNA World
- Ribozymes: Catalytic RNAs
- Molecular Evolution of RNA
- Early Synthesis of Organic Molecules
- Abiotic Polymerization
- Origin of Cells
- Living Things Reproduce Themselves