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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...
    Lesson
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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...
    Lesson
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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...
    Lesson
    3146

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    897

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    Fruit Fly Genetics in a Day: A Guided Exploration to Help Many Large Sections of Beginning Students Uncover the Secrets of Sex-linked Inheritance
    Moving beyond the basic concepts of autosomal Mendelian inheritance to sex-linkage can be difficult for introductory biology students. Although crosses with Drosophila fruit flies have long been a mainstay of genetics units that teach these...

    Courses: GeneticsGenetics

    Lesson
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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...
    Lesson
    6262

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    554

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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...
    Lesson
    5657

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    1170

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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...
    Science Behind the Lesson
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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...
    Lesson
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    93

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    Gender and Classroom Participation: A Case for Quantitative Analysis
    Teaching statistics to students using authentic research is one way to highlight the transferability and value of the material taught in the class. Below we describe an activity in Statistics for Biological and Health Sciences (STAT2510), an...
    Lesson
    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...
    Lesson
    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...
    Lesson
    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...
    PCR
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    7673

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    1462

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    An undergraduate bioinformatics curriculum that teaches eukaryotic gene structure
    Gene structure, transcription, translation, and alternative splicing are challenging concepts for many undergraduates studying biology. These topics are typically covered in a traditional lecture environment, but students often fail to master and...
    Lesson
    2805

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    703

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    Teaching Biodiversity with Museum Specimens in an Inquiry-Based Lab
    In response to the growth of biology datasets and broad efforts to digitize data, an increasingly important skill for science students is the management and analysis of large datasets. We designed an inquiry-based lab module to introduce students...
    Lesson
    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...
    Lesson
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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: MicrobiologyMicrobiology

    Lesson
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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...
    Lesson
    5077

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    668

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    How Do Kidneys Make Urine From Blood? Qualitative and Quantitative Approaches to Filtration, Secretion, Reabsorption, and Excretion
    The function of the kidneys is to help maintain a constant internal environment (homeostasis) by regulating the volume and chemical composition of the blood. This regulation occurs via three fundamental processes: filtration, secretion, and...
    Lesson
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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...
    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...