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    The p53 Gene and Cancer
    This tutorial describes the structure and function of the p53 protein, how its activity is regulated in cells, and how mutant versions of p53 can lead to cancer.

    Keywords: Resources @ HHMI - BioInteractiveBiochemistrymolecular biologymacromoleculesGenetic disease

    3265

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    419

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    0

    comments

    1

    adaptations

    Cystic Fibrosis Mechanism and Treatment
    This animation shows how mutations in an ion channel protein lead to the genetic disease cystic fibrosis. The animation also discusses how research on this protein has been used to develop...

    Keywords: Resources @ HHMI - BioInteractiveBiochemistrymacromoleculesGenetic diseaseCell Structure & Function

    1094

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    191

    downloads

    0

    comments

    0

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    The Biology of Skin Color
    This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world.

    Keywords: Resources @ HHMI - BioInteractivegene regulationgene expressionAnatomy & Physiologyhuman evolutionfilm

    3588

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    404

    downloads

    0

    comments

    0

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    Competition under the Sea: Exploring the competitive interaction between native and non-native seagrasses in the Caribbean
    A mini-case study that uses real-world data to explore the competitive interaction among seagrasses.

    Keywords: ecologycompetitionconservation ecologywater resource managementseagrassCaribbean

    1286

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    462

    downloads

    0

    comments

    0

    adaptations

    Fantastic Birds and Where to Find Them
    5E lesson plan for middle/high school aligned to NGSS standards.

    Keywords: conservationspecies interactionsidigbionatural historyBiodiversityendangered species

    1600

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    555

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    0

    comments

    0

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    Cardiac Output
    This module introduces Fick's principle in the context of understanding the cardiac output. It is intended for an introductory biology audience.

    Keywords: linear regressionproportionslinear equationsOpenStaxAnimal Physiology

    980

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    194

    downloads

    0

    comments

    0

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    Cell Aggregation and Sphere Packing
    This module introduces the calculation of packing density in the context of understanding cell aggregation and arrangement. It is intended for an introductory biology audience.

    Keywords: RatiosGeometryInequalitiesCell StructureCell GrowthCell AggregationSphere Packing

    950

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    188

    downloads

    0

    comments

    0

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    Cell Division and the Presence of a Growth Factor
    This module introduces exponential growth, the Michaelis-Menten, and Lineweaver-Burk equations in the context of understanding how growth factors influence cell division. It is intended for an...

    Keywords: exponential equationshyperbolic equationsCell StructureCell Growthgrowth factor

    795

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    172

    downloads

    0

    comments

    0

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    Diffusion Through a Cell Membrane
    This module introduces rates of diffusion in the context of understanding simple and facilitated diffusion through the cell membrane. It is intended for an introductory biology audience.

    Keywords: linear equationscalculushyperbolic equationsCellular Processesrates of change

    942

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    205

    downloads

    0

    comments

    0

    adaptations

    DNA and Knot Theory
    This module introduces knot theory in the context of understanding the packing of DNA. It is intended for an introductory biology audience.

    Keywords: DNAGenetic InformationTopologyKnot Theory

    867

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    168

    downloads

    0

    comments

    0

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    Hemoglobin Evolution
    This module introduces equations describing blood viscosity and oxygen transport in the context of understanding the evolution of red blood cells. It is intended for an introductory biology audience.

    Keywords: calculushyperbolic equationsAnimal Physiologyparabolic equationsmaxima

    966

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    172

    downloads

    0

    comments

    0

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    Lung Capacity and Rhythms in Breathing
    This module introduces rhythmic inhaling and exhaling in the context of understanding trigonometry and sine waves. It is intended for an introductory biology audience.

    Keywords: Trigonometrysine wavesAnimal Physiology

    760

    views

    168

    downloads

    0

    comments

    0

    adaptations

    Maintaining Cellular Conditions: pH and Buffers
    This module introduces the chemical reactions related to pH in the context of understanding how acidity can affect both the structure and chemical reactivity of cellular molecules. It is intended...

    Keywords: ExponentsLogarithmsRatiosCellular Processes

    857

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    228

    downloads

    0

    comments

    0

    adaptations

    Mechanisms of Cell Attachment
    This module introduces the calculation of refractive indices along a cell surface in the context of understanding the attachment of cells to surfaces. It is intended for an introductory biology...

    Keywords: GeometryCell StructureCell GrowthSimple EquationsInterpreting GraphCell Attachment

    797

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    151

    downloads

    0

    comments

    0

    adaptations

    Metabolism for Energy and the Respiratory Quotient
    This module introduces the respiratory quotient in the context of understanding how metabolism is affected by environmental conditions. It is intended for an introductory biology audience.
    581

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    283

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    0

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    0

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    Tension in Blood Vessels: LaPlace's Equation
    This module introduces Laplace's equation in the context of understanding tension in the walls of blood vessels. It is intended for an introductory biology audience.

    Keywords: linear equationsOpenStaxAnimal Physiology

    967

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    200

    downloads

    0

    comments

    0

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    Mitotic Index and Cell Division
    This module introduces the mitotic index in the context of understanding the dynamics of cell division in the root of a plant. It is intended for an introductory biology audience.

    Keywords: RatiosCell StructureCell GrowthchartCell DivisionMitotic Index

    1026

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    424

    downloads

    1

    comments

    0

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    Nastic Movements in Plants
    This module introduces an osmotic model in the context of understanding plants' capability of rapidly adapting to changes in their environment. It is intended for an introductory biology audience.

    Keywords: plant physiologyhyperbolic equationsOpenStaxinterpreting modelsnastic movements

    1036

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    311

    downloads

    0

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    0

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    Nuclear and Cytoplasmic Viscosity
    This module introduces a modified Stokes-Einstein equation in the context of understanding the difference in viscosity between the nucleus and cytoplasm of cells

    Keywords: linear equationsCell StructureCell GrowthCytoplasmic Viscosity

    794

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    138

    downloads

    0

    comments

    0

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    Nucleoplasmic Index
    This module introduces the nucleoplasmic index in the context of understanding how the volume of organelles and cell contents change during the cell cycle. It is intended for an introductory...

    Keywords: RatiosInterpreting GraphsCell StructureCell GrowthNucleoplasmic Index

    1659

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    274

    downloads

    0

    comments

    0

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