CourseSource: Resources

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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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6262

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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 Biology Genetics Introductory Biology

meiosischiasma formationchromosome recombination

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3472

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725

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0

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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

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2127

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406

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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

dna structureDNA damageDNA recombinationGene crossoverHolliday junction

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1652

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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 Biology Genetics

mathematical modelhomologous recombinationCre/loxgene targeting

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2281

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352

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Learning R for Biologists: A Mini Course Grab-Bag for Instructors

As biology becomes more data driven, teaching students data literacy skills has become central to biology curriculum. Despite a wealth of online resources that teach researchers how to use R, there are few that offer practical laboratory-based...

Courses: Anatomy-Physiology Bioinformatics Ecology Ecology Genetics

Rdata analysisRStudio

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992

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182

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1

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From Cre/LoxP to Fate Maps: Inclusive and Equitable Approaches for Engaging Developmental Biology Students in Experimental Design

Engaging first generation underrepresented minority students in the process of inquiry in developmental biology is important to increase diversity in future graduate STEM education. One important challenge is how we design curricula to foster...

Courses: Developmental Biology

experimental designC. elegansCre/LoxPFate mapheart developmentheart regenerationmousereporter constructzebrafish

Science Behind the Lesson

661

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59

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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 Biology Genetics Introductory Biology

epigeneticsgene regulationtranscriptioncentral dogmatranslationFragile X syndromeSphingosine Metabolism

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2045

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890

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Exploration of the Human Genome by Investigation of Personalized SNPs

Students often shy away from tedious bioinformatics approaches to exploring their genomes. However, in our expanding digital world these skills are some of the most relevant and valuable. To increase students' interest in their own genomes, I...

Courses: Bioinformatics Genetics Science Process Skills

UCSC genome browsersingle nucleotide polymorphismGenome wide association studiesGenomic organization

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2998

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348

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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 Biology Genetics

mutationProtein Structureethicscentral dogmahuman disease

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3049

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516

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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: Genetics Science Process Skills

PCR

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1799

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343

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Cutthroat trout in Colorado: A case study connecting evolution and conservation

Evaluation of evidence is a key process skill for the core competencies of applying the process of science and using quantitative reasoning. This case study enables upper-division biology students to practice these skills by applying evolutionary...

Courses: Evolution Genetics Science Process Skills

population geneticsphylogeneticsSpeciationdivergencegene flow

Lesson

5493

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2555

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Exploring the Lytic and Lysogenic Life Cycles of Bacteriophages

The goal of this lesson is to introduce students to the lytic and lysogenic cycles of T4 and lambda bacteriophages, respectively, using student-centered pedagogies. Bacteriophages are viruses that infect bacteria and are either virulent or...

Courses: Microbiology

bacteriophagesLysogenic cycleLysogenyLytic cycle

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2821

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685

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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: Genetics Science Process Skills

process of scienceDNAforensicsgel electrophoresisMolecular genotypingRestriction endonucleaseRestriction enzymeRestriction fragment length polymorphismRFLP

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3507

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1299

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A CRISPR/Cas Guide RNA Design In Silico Activity

CRISPR biotechnologies inspired by the Clustered Regularly Interspaced Short Palindromic Repeat RNA-guided nuclease adaptive bacterial immune system have revolutionized biology research and become ubiquitous tools for hypothesis and...

Courses: Biochemistry and Molecular Biology Bioinformatics Cell Biology Genetics

bioinformaticsgene expressiongenetic basis of diseaseCRISPR/Cas9genetic engineeringin silico

Teaching Tools and Strategies

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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 Biology Genetics Introductory Biology

geneticsDNAbiochemical structure and function

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3769

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287

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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 Biology Genetics

gene regulationtranscriptiontranslationFragile X syndrometriplet repeat expansionsex linkagemetabolic pathway

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1695

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495

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Sex-specific differences in Meiosis: Real-world applications

In traditional classrooms, students are typically presented with facts that they are asked to memorize and recall during an exam. The rapid explosion of available scientific facts in recent years has made this model of teaching...

Courses: Cell Biology Genetics Science Process Skills

meiosisReproductionAneuploidyGameteNon-disjunctionOocyteSpermTrisomy

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3164

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404

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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: Evolution Genetics Introductory Biology