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    Furry with a chance of evolution: Exploring genetic drift with tuco-tucos
    Genetic drift is an important mechanism of evolution, yet undergraduates often fail to understand how it leads to evolutionary change due in part to its random nature. This lesson plan describes a simulation-based activity that allows students to...

    Courses: EvolutionEvolution

    Lesson
    3181

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    650

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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...
    Teaching Tools and Strategies
    1024

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    18

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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

    Lesson
    819

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    125

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    Teaching the Photoelectric Effect Using an Open-Source Interactive Simulation
    The photoelectric effect is one of the fundamental experiments that established the basis of quantum mechanics. Students studying this experiment in modern physics courses struggle to understand what it actually measured and why it is significant....
    Lesson
    2726

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    247

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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...
    Teaching Tools and Strategies
    1587

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    188

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    Gratitude Interventions in a Biology Course to Foster Student Persistence and Success
    College students are experiencing a mental health crisis, which has been further exacerbated by the COVID-19 pandemic. This is problematic because stress and anxiety impede learning. One way to combat stress and anxiety is to focus on gratitude,...
    Science Behind the Lesson
    1198

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    164

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    The Science Behind the ACTN3 Polymorphism
    A common polymorphism in the alpha-actinin-3 (ACTN3) gene results in the lack of ACTN3 protein expression in fast twitch muscle fibers in ~16% of the human population (1). This genetic change has been linked with muscle performance in humans (2)...
    Lesson
    4665

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    868

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    Tackling "Big Data" with Biology Undergrads: A Simple RNA-seq Data Analysis Tutorial Using Galaxy
    Analyzing high-throughput DNA sequence data is a fundamental skill in modern biology. However, real and perceived barriers such as massive file sizes, substantial computational requirements, and lack of instructor background knowledge can...
    Teaching Tools and Strategies
    2745

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    442

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    A Strategy for Teaching Undergraduates to Write Effective Scientific Results Sections
    Most undergraduate instructors would agree that learning to write about data in the style of a scientific research paper is a worthy goal for their students.  However, many hesitate to tackle the challenge of teaching scientific writing in...
    Lesson
    3006

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    647

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    A Hands-on Introduction to Hidden Markov Models
    In this Lesson, we describe a classroom activity that demonstrates how a Hidden Markov Model (HMM) is applied to predict a eukaryotic gene, focusing on predicting one exon-intron boundary. This HMM lesson is part of the BIOL/CS 370...
    Teaching Tools and Strategies
    706

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    130

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    Graphical Organizers as Course Road Maps: Using a geologic timescale in a history of life course
    Both major and non-major biology students lack understanding of important evolutionary events, how they are spaced in time, and how they relate back to the earth system. Graphical organizers like concept maps and timescales are popular tools that...

    Courses: EvolutionEvolution

    Lesson
    3055

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    1089

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    CRISPR/Cas9 in yeast: a multi-week laboratory exercise for undergraduate students
    Providing undergraduate life-science students with a course-based research experience that utilizes cutting-edge technology, is tractable for students, and is manageable as an instructor is a challenge. Here, I describe a multi-week lesson plan...
    Lesson
    4196

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    1570

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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...
    Lesson
    970

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    139

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    Fatty Acid Induction of Lipid Droplets in Cancer Cells
    There is a growing need for the development and communication of cell culture-based laboratory activities specifically designed for undergraduate students. This multi-week laboratory activity allows students to take part in the planning,...
    Lesson
    1928

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    276

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    Assessing in vivo Antimicrobial Activity Through the Analysis of Galleria mellonella Kaplan-Meier Plots
    Antimicrobials and their use in the treatment of bacterial infections are a fundamental lesson in all microbiology courses. Typically, cultivation-based methods are used to teach students about antimicrobial testing. A complementary approach...

    Courses: MicrobiologyMicrobiology

    Lesson
    1999

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    234

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    1

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    Discovering Prokaryotic Gene Regulation by Building and Investigating a Computational Model of the lac Operon
    The ability to construct and reason through a biological system is an important skill to develop in science education. This level of understanding forces students to recognize the interrelatedness of components within a biological process and...
    Lesson
    3315

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    241

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    SEAS CURE: Exploring Coral Biology Across Scales
    Complex biological concepts (like symbiosis and coral biology) that span multiple scales and cross disciplinary boundaries are often difficult for students to understand. This complexity is compounded by the challenges inherent to teaching and...
    Lesson
    4014

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    391

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    Teaching Advanced Concepts in Regulation of the Lac Operon With Modeling and Simulation
    Success in biochemistry and other life science courses requires that students understand important biological concepts. One of these concepts is how gene regulation ensures that homeostasis is maintained in an organism. The lac operon is a...
    Lesson
    2593

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    58

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    An Inquiry-Based Project Added to Traditional Labs: Hands-On Fish Awareness Research in Freshwater Systems Conducted by First-Year Biology Students
    This project involves students in an inquiry-based project added to the introductory biology laboratory course for majors in fall 2019. Research has shown that student engagement in authentic research has significant positive impacts on...
    Lesson
    902

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    354

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    Learning How to Make “Good Enough” Estimations
    The ability to estimate physical quantities is a useful skill that can help develop critical thinking and scientific literacy. This lesson provides an accessible way to teach students how to estimate physical quantities by focusing on three key...