CourseSource: Resources

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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 Biology Genetics Introductory Biology

meiosischiasma formationchromosome recombination

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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 Biology Genetics Introductory Biology

recombinationmeiosisDNA sequenceCrossingoverchromosome structureHolliday junctionhomology

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4811

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A simple way for students to visualize cellular respiration: adapting the board game MousetrapTM to model complexity

Lecture-based introductory biology courses are typically content-heavy as instructors strive to provide students with foundational knowledge in a broad range of topics. One topic traditionally covered is cellular respiration, the series of...

Courses: Introductory Biology

ATPGlycolysisCellular RespirationElectron Transport ChainKrebs Cycle

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3471

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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: Bioinformatics Genetics Introductory Biology Science Process Skills

bioinformaticsautosomehomologous chromosomeshomologous recombinationsex chromosomesex determinationsex reversal mutations

Teaching Tools and Strategies

1341

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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: Genetics

assessmenttestexamLarge classconstructed responseshort answerscoring

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6535

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Mapping a Mutation to its Gene: The "Fly Lab" as a Modern Research Experience

Although genetics is an invaluable part of the undergraduate biology curriculum, it can be intimidating to students as well as instructors: Students must reduce their reliance on memorization and dive deep into quantitative analysis, and...

Courses: Biochemistry and Molecular Biology Bioinformatics Genetics Science Process Skills

geneticsbioinformaticsdrosophilachi-square analysiscomplementation mappingmode of inheritancethree-point mapping

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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: Genetics

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

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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 Biology Introductory Biology

structure-functionEnzymeallosteric regulationcompetitive inhibitionfeedback inhibitionnoncompetitive inhibitionproductsubstrate

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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 Biology Genetics

mathematical modelhomologous recombinationCre/loxgene targeting

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2125

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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 Biology Genetics