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    3469

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    724

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    Homologous chromosomes? Exploring human sex chromosomes, sex determination and sex reversal using bioinformatics approaches
    Constructing a robust understanding of homologous chromosomes, sex chromosomes, and the particulate nature of genes is a notoriously difficult task for undergraduate biology students. In this lesson, students expand their knowledge of human...

    Courses: BioinformaticsBioinformatics GeneticsGenetics Introductory BiologyIntroductory Biology Science Process SkillsScience Process Skills

    bioinformaticsautosomehomologous chromosomeshomologous recombinationsex chromosomesex determinationsex reversal mutations
    Lesson
    6254

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    554

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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
    Lesson
    5650

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    1168

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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
    996

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    137

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    0

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    Student-Generated Analogies for Learning about Information Flow
    Using analogies is a standard practice for both teaching and communicating ideas in science. Here we upend the traditional lesson, where the instructor provides a fully constructed analogy and explains it, by having the students develop a complex...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology Cell BiologyCell Biology GeneticsGenetics Introductory BiologyIntroductory Biology

    critical thinkingcentral dogmaanalogical reasoning
    Lesson
    4868

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    1859

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    0

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    Teaching Genetic Linkage and Recombination through Mapping with Molecular Markers
    Most introductory genetics courses cover genetic linkage, a core concept in the CourseSource genetics learning outcome framework. Although it is a classical genetics topic, genetic linkage remains an important concept to understand in order to...

    Courses: GeneticsGenetics Plant BiologyPlant Biology Science Process SkillsScience Process Skills

    meiosisphenotypegel electrophoresismicrosatellitesBanding PatternGenetic linkageInheritanceMolecular MarkersPhysical Linkage
    Science Behind the Lesson
    656

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    58

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    0

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    X-ploring Fragile X: The Science Behind the Syndrome
    Fragile X Syndrome is an X-linked genetic disorder resulting from the impairment of transcription of the FMR1 gene, producing less to no FMRP protein. FMRP is a translational inhibitor that plays a key role in neurological development. Recent...

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

    epigeneticsgene regulationtranscriptioncentral dogmatranslationFragile X syndromeSphingosine Metabolism
    Lesson
    2993

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    346

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    A Muscular Dystrophy Case Study Illustrating the Phenotypic Effects of Mutation
    Mutations in genes can lead to a variety of phenotypes, including various human diseases. Students often understand that a particular mutation in a single gene causes a disease phenotype, but it is more challenging to illustrate complex genetic...

    Courses: Developmental BiologyDevelopmental Biology GeneticsGenetics

    mutationProtein Structureethicscentral dogmahuman disease
    Lesson
    2278

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    305

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    0

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    Learning Quantitative Genetics: Investigation of Genetic Control for Cold Stress Response in Plants
    Course-embedded undergraduate research experiences (CUREs) for students have been shown to increase students’ understanding of the process of science, affirm their scientific identity, and improve retention in STEM fields. Despite many CUREs...

    Courses: GeneticsGenetics

    data analysisrecombinationplantsquantitative geneticsabiotic stress responsegenetic control of complex traitsinheritance of complex traits
    Lesson
    2816

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    682

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    0

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    The Case of the Missing Strawberries: RFLP analysis
    While solving the fictional mystery of the missing strawberries, students are engaged in a guided-inquiry lesson featuring small-group and class discussions, hands-on activities, and laboratory exercises related to molecular genotyping by...

    Courses: GeneticsGenetics Science Process SkillsScience Process Skills

    process of scienceDNAforensicsgel electrophoresisMolecular genotypingRestriction endonucleaseRestriction enzymeRestriction fragment length polymorphismRFLP
    Teaching Tools and Strategies
    1338

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    50

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    Using Constructed Response Questions on High-Stakes Assessments in Large Classes With Limited Support
    Large lecture courses often rely heavily, and sometimes exclusively, on Multiple Choice (MC) exams to assess student learning. Constructed Response (CR) questions, in which students generate their own answers, can provide more insight into student...

    Courses: GeneticsGenetics

    assessmenttestexamLarge classconstructed responseshort answerscoring
    Lesson
    9296

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    1205

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    Why Meiosis Matters: The case of the fatherless snake
    A compelling reason to learn something can make all the difference in students’ motivation to learn it.  Motivation, in turn, is one of the key attitudes that drives learning.  This story presents students with a compelling puzzle of a...

    Courses: GeneticsGenetics Science Process SkillsScience Process Skills

    meiosismitosissex determinationAsexual reproductionParthenogenesis
    Teaching Tools and Strategies
    2546

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    211

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    0

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    An Interactive Protocol for In-Classroom DNA Extraction
    Using commonly available materials, this tool allows students to extract DNA, exploring DNA chemistry and the principles of experimental design and execution. We take a “Choose Your Own Adventure” approach encouraging students to...

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

    geneticsDNAbiochemical structure and function
    Lesson
    1906

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    474

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    Why do Some People Inherit a Predisposition to Cancer? A small group activity on cancer genetics
    Before undergraduate students take a genetics course they generally know cancer has a genetic basis and involves the proliferation of cells; however, many are uncertain about why only a subset of people have a predisposition to cancer and how that...

    Courses: GeneticsGenetics Science Process SkillsScience Process Skills

    cancerInheritance patternsProbability calculationProto-oncogeneTumor Suppressor Gene
    Lesson
    3762

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    285

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    0

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    Fragile States: A Case Study Exploring Genetics, Molecular Biology, and Biochemistry Through the Lens of Fragile X Syndrome
    This case aims to strengthen students’ understanding of molecular biology concepts through study of Fragile X Syndrome (FXS). Students begin by learning the cause and phenotypes of FXS and related conditions. Students then apply genetics...

    Courses: Biochemistry and Molecular BiologyBiochemistry and Molecular Biology GeneticsGenetics

    gene regulationtranscriptiontranslationFragile X syndrometriplet repeat expansionsex linkagemetabolic pathway
    Lesson
    5361

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    1394

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    0

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    Teaching Cell Structures through Games
    As the basic unit of life, cells are a foundational concept for all of biology. Before students can appreciate how eukaryotic cells function either in isolation or in higher order and multicellular organisms, they must first have a basic...

    Courses: Introductory BiologyIntroductory Biology

    Cell Structurecell organellesTransmembrane Transport
    Essay
    1704

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    369

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    0

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    Online Adaptation of the Cell Engineer/Detective Lesson
    One of the most fundamental themes of biology is the relationship between structure and function, which is particularly evident when it comes to cells; however, the traditional cartoon depictions of cells that are often used to help teach the...

    Courses: Cell BiologyCell Biology Introductory BiologyIntroductory Biology Science Process SkillsScience Process Skills

    cell functionCell StructureOrganelles
    Lesson
    3162

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    404

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    0

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    Honoring the Complexity of Genetics: Exploring the Role of Genes and the Environment Using Real World Examples
    Historically, undergraduate genetics courses have disproportionately focused on the impact of genes on phenotypes, rather than multifactorial concepts which consider how a combination of genes, the environment, and gene-by-environment interactions...

    Courses: EvolutionEvolution GeneticsGenetics Introductory BiologyIntroductory Biology

    genesenvironmentMendelQuantitative traitsMultifactorialGene by environment interactions
    Lesson
    5295

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    695

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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
    Lesson
    3384

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    1353

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    0

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    Using the Cell Engineer/Detective Approach to Explore Cell Structure and Function
    As instructors of introductory biology courses for majors and non-majors, we have struggled with teaching the concept of cell structure and function in an engaging way.  However, this is a foundational concept that most biology instructors...

    Courses: Cell BiologyCell Biology Introductory BiologyIntroductory Biology Science Process SkillsScience Process Skills

    cell functionCell StructureCellular diversityDynamic cellular functionOrganelle function
    Lesson
    2102

    views

    543

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    0

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    Using computational molecular modeling software to demonstrate how DNA mutations cause phenotypes
    Students require a deep understanding of the central dogma before they can understand complex topics such as evolution and biochemical disorders. However, getting undergraduate biology students to apply higher-order thinking skills to the central...

    Courses: BioinformaticsBioinformatics GeneticsGenetics Science Process SkillsScience Process Skills

    Protein Structurecomputational modelingcentral dogmaplant leaf structurePhenotype/Genotype