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    Sequence Similarity: An inquiry based and "under the hood" approach for incorporating molecular sequence alignment in introductory undergraduate biology courses
    Introductory bioinformatics exercises often walk students through the use of computational tools, but often provide little understanding of what a computational tool does "under the hood." A solid understanding of how a bioinformatics...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology BioinformaticsBioinformatics Introductory BiologyIntroductory Biology

    BLASTmultiple sequence alignmentsequence similarityphylogramZika virusAlgorithmScoring Matrix
    Lesson
    5680

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    1171

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    3

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    Meiosis: A Play in Three Acts, Starring DNA Sequence
    Meiosis is well known for being a sticky topic that appears repeatedly in biology curricula. We observe that a typical undergraduate biology major cannot correctly identify haploid and diploid cells or explain how and why chromosomes pair before...

    Courses: Cell BiologyCell Biology GeneticsGenetics Introductory BiologyIntroductory Biology

    recombinationmeiosisDNA sequenceCrossingoverchromosome structureHolliday junctionhomology
    Lesson
    3066

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    521

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    A Kinesthetic Modeling Activity to Teach PCR Fundamentals
    Most molecular biology and biological sciences students understand that the polymerase chain reaction (PCR) is used to amplify DNA. However, we have found that some students experience conceptual misunderstandings, a lack of detailed comprehension...

    Courses: GeneticsGenetics Science Process SkillsScience Process Skills

    PCR
    Lesson
    2158

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    409

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    Integrating Manipulatives and Animations to Visualize Holliday Junctions
    The complex molecular architecture of Holliday junctions is often challenging for undergraduate biochemistry students to conceptualize. In particular, they have difficulty translating from two-dimensional, linear representations shown in textbooks...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology GeneticsGenetics

    dna structureDNA damageDNA recombinationGene crossoverHolliday junction
    Lesson
    1908

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    644

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    A Close-Up Look at PCR
    The Polymerase Chain Reaction (PCR) is a fundamental laboratory technique that allows for the amplification of many copies of a desired DNA target sequence. Despite its prevalence, undergraduate students often have poor comprehension about the...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology GeneticsGenetics Introductory BiologyIntroductory Biology Science Process SkillsScience Process Skills

    PCRDNA replication
    Teaching Tools and Strategies
    1313

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    308

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    Sanger Sequencing by Hand: Using Paper Clips to Demonstrate Chain Termination
    Sanger sequencing is commonly taught with a hands-on approach. Sanger sequencing involves chain termination by dideoxynucleotides, because they are missing the oxygen on the 3’ carbon atom, which is required for the addition of subsequent...

    Courses: GeneticsGenetics

    nucleotidessequencingDNAgel electrophoresisChain Termination
    Lesson
    1661

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    245

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    Make It Stick: Teaching Gene Targeting with Ribbons and Fasteners
    Manipulating gene expression is a commonly used tool to study the effect of a single gene or the hierarchy of gene networks in many different biological disciplines. When working with mice, the most commonly used techniques to manipulate genes...

    Courses: Developmental BiologyDevelopmental Biology GeneticsGenetics

    mathematical modelhomologous recombinationCre/loxgene targeting
    Lesson
    5354

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    702

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    Investigating Enzyme Structure and Function Through Model-Building and Peer Teaching in an Introductory Biology Course
    A foundational knowledge of the relationship between structure and function is critical to understanding how enzymes work. The seemingly invisible nature of these molecular interactions makes it challenging for undergraduate students to...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology Introductory BiologyIntroductory Biology

    structure-functionEnzymeallosteric regulationcompetitive inhibitionfeedback inhibitionnoncompetitive inhibitionproductsubstrate
    Teaching Tools and Strategies
    1218

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    131

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    0

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    Undergraduates Learn Evolution Through Teaching Kindergartners About Blind Mexican Cavefish
    The development and implementation of a scientific outreach activity comes with a number of challenges. A successful outreach event must match the sophistication of content to the audience, be engaging, expand the knowledge base for participants,...

    Courses: EcologyEcology EvolutionEvolution GeneticsGenetics Introductory BiologyIntroductory Biology

    Evolutionecologymorphologysensory biologycave biologycomparative biologyenvironmental differencesregressive lossstructure and function
    Teaching Tools and Strategies
    2832

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    394

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    The Flight Physics Concept Inventory: Reliably Evaluating Aerodynamic Lift, Drag and Associated (Naïve) Concepts of Flight in Class and In-Game
    Students often struggle to transfer conceptual understanding from isolated instruction to a coherent mental model. This is especially true for the context of flight physics, fluid dynamics, or the concepts of aerodynamic lift, drag, stall, center...

    Courses: Introductory Physics: Calculus-BasedIntroductory Physics: Calculus-Based

    active learninggamificationmisconceptionsaerodynamicsfluid dynamicsResearch-based assessment instrumentConceptual SurveyPRE-/POST-test
    Lesson
    1493

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    161

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    Infectious Chocolate Joy with a Side of Poissonian Statistics: An activity connecting life science students with subtle physics concepts
    Introductory physics courses are required for many programs in the life sciences, yet traditional curricula fail to help students meaningfully connect physical concepts with biological systems.  In this lesson, we describe an activity taught...

    Courses: BioinformaticsBioinformatics MicrobiologyMicrobiology Science Process SkillsScience Process Skills

    quantitative biologyHIVmultiplicity of infectionPoisson DistributionPhysics for biologists
    Lesson
    3036

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    407

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    It's a Substrate... It's a Protein...No - It's an Enzyme! Teaching Using 3D Serine Protease Physical Modeling Activities to Confront Misconceptions.
    Reported misconceptions of enzyme-substrate interactions highlight the necessity for better, targeted instructional tools and assessments. A series of active learning activities with corresponding three-dimensional (3D) physical models were...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology

    Protein StructureEnzymes-Substrate InteractionsNoncovalent InteractionsGeometric ComplementaryElectronicsStereochemistrySerine Proteases
    Review
    3649

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    283

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    Active Learning: Developing Self-Directed Learners Through Strong Intellectual Engagement
    When they were students, many current science instructors learned through traditional lectures. This mode of passive knowledge transmission has been shown to be less effective for student learning than an approach that involves students in a...

    Courses: Introductory BiologyIntroductory Biology Science Process SkillsScience Process Skills

    active learningmetacognitionconstructivism
    Lesson
    6316

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    557

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    2

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    Meiosis Remodeled: Inclusion of New Parts to Poppit Bead Models Enhances Understanding of Meiosis
    A long-standing tradition uses strings of poppit beads of different colors to model meiosis, especially to show how segments of paired homologous chromosomes are recombined. Our use of orthodontic latex bands to model cohesion of sister...

    Courses: Cell BiologyCell Biology GeneticsGenetics Introductory BiologyIntroductory Biology

    meiosischiasma formationchromosome recombination