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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...
    Lesson
    5667

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    1170

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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...
    Lesson
    2145

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    407

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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...
    Lesson
    6278

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    555

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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...
    Lesson
    3474

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    725

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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
    1006

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    139

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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...
    Lesson
    1899

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    640

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    A Close-Up Look at PCR
    The Polymerase Chain Reaction (PCR) is a fundamental laboratory technique that allows for the amplification of many copies of a desired DNA target sequence. Despite its prevalence, undergraduate students often have poor comprehension about the...
    Lesson
    547

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    85

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    Using Raw Sequence Data to Analyze Tumor Suppressor Mutations
    Learning to identify DNA sequence variants from raw sequencing data (electropherograms) is a basic molecular biology skill with applications to basic research and clinical practice. Yet learning to map DNA sequence variants to functional regions...
    Lesson
    2111

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    545

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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...
    Teaching Tools and Strategies
    1302

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    307

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    Sanger Sequencing by Hand: Using Paper Clips to Demonstrate Chain Termination
    Sanger sequencing is commonly taught with a hands-on approach. Sanger sequencing involves chain termination by dideoxynucleotides, because they are missing the oxygen on the 3’ carbon atom, which is required for the addition of subsequent...

    Courses: GeneticsGenetics

    Teaching Tools and Strategies
    5110

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    458

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    Drawing flowcharts of lab protocols helps students prepare for biology labs
    With the publishing of the Vision and Change report, we know it is best practice to include authentic research experiences in our undergraduate science lab classes. One big challenge in teaching so-called "wet lab" classes is figuring...
    Lesson
    5045

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    914

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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...
    Lesson
    1959

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    281

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    A CURE-based approach to teaching genomics using mitochondrial genomes
    There is an abundance (currently over 1016 DNA bases) of publicly available genetic sequence data and a dearth of trained genomicists to process and interpret it, necessitating more trained bioinformaticians with biological expertise. For...
    Lesson
    2291

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    306

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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

    Lesson
    2883

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    1007

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    Building Trees: Introducing evolutionary concepts by exploring Crassulaceae phylogeny and biogeography
    Teaching evolutionary theory is foundational for all biological sciences and a key aspect of overall science literacy. The conceptual framework for understanding evolution relies on thinking clearly about evolutionary trees (phylogenetics) and how...
    Lesson
    3703

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    679

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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
    1343

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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

    Teaching Tools and Strategies
    1137

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    142

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    An Open Source, Collaborative Electronic Notebook for Undergraduate Laboratory Classes
    To overcome many of the limitations of the paper laboratory notebook (PLN), we developed an electronic laboratory notebook (e-LN) for the Dynamic Genome course at the University of California. The Dynamic Genome course is an authentic research...
    Lesson
    1287

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    170

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    Central Dogma, Dictionaries, and Functions: Using Programming Concepts to Simulate Biological Processes
    Technologies like next-generation sequencing, proteomics, and high-throughput phenotyping have transformed the way we do biology. There is a continued need for scientists with computational skills to analyze biological data while understanding the...

    Courses: BioinformaticsBioinformatics

    Lesson
    4118

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    597

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    Splicing it Together: Using Primary Data to Explore RNA Splicing and Gene Expression in Large-Lecture Introductory Biology
    At the heart of scientific ways of knowing is the systematic collection and analysis of data, which is then used to propose an explanation of how the world works. In this two-day module, students in a large-lecture course are immersed in a...