CourseSource: Resources

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182

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Simulating Cortical Rotation, Axis Induction, and Experimental Embryology in Amphibian Embryos Using Clay Models

The study of development requires learners to understand spatially complex concepts like embryo anatomy. Embryo anatomy is dynamic over time, and it is often manipulated by researchers in experiments that are fundamental to the field. This spatial...

Courses: Developmental Biology

developmentXenopusfertilizationEmbryologyinductionSymmetry breakingOrganizerCortical rotationPatterning

Science Behind the Lesson

2009

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294

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0

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The Science Behind Parthenogenesis: Interesting things happen when meiosis goes “wrong”

Parthenogenetic reproduction is a fascinating, complex topic. This article accompanies “Why Meiosis Matters: The case of the fatherless snake.” It summarizes the basic information an introductory biology or genetics instructor...

Courses: Cell Biology Genetics Introductory Biology

meiosismitosissex determinationAsexual reproductionParthenogenesis

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9296

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1205

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Why Meiosis Matters: The case of the fatherless snake

A compelling reason to learn something can make all the difference in students’ motivation to learn it. Motivation, in turn, is one of the key attitudes that drives learning. This story presents students with a compelling puzzle of a...

Courses: Genetics Science Process Skills

meiosismitosissex determinationAsexual reproductionParthenogenesis

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1906

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474

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Why do Some People Inherit a Predisposition to Cancer? A small group activity on cancer genetics

Before undergraduate students take a genetics course they generally know cancer has a genetic basis and involves the proliferation of cells; however, many are uncertain about why only a subset of people have a predisposition to cancer and how that...

Courses: Genetics Science Process Skills

cancerInheritance patternsProbability calculationProto-oncogeneTumor Suppressor Gene

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1693

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494

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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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2598

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488

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A Modeling Exercise in Sexual Selection using a Student-Created Bird Species

Evolution-centered lessons at the undergraduate level can often be jargon-heavy, propagate misconceptions if taught ineffectively, and be uninteresting to students who may not see the relevancy of such concepts. This activity provides a fun and...

Courses: Ecology Ecology Evolution Introductory Biology

Evolutionfitnesssexual selectionNatural Selectionintersexual selectionmate choice

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1684

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394

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Taking the Hassle out of Hasselbalch

Mention pH in a classroom and you can almost see the inner yawn on the faces of your students. The definition may even roll easily from their lips. However, despite multiple exposures to the relationship of pH and pKa throughout a typical...

Courses: Biochemistry and Molecular Biology Science Process Skills

pHdrug uptakeHenderson-Hasslbalch equationmedical applicationspKa

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2816

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682

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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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2434

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166

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A Rapid Genetic Screen Using Wisconsin Fast Plants^®: A Hands-On Approach to Inheritance of de novo Mutations

Some concepts in genetics, such as genetic screens, are complex for students to visualize in a classroom and can be cumbersome to undertake in the laboratory. Typically, very large populations are needed, which can be addressed by using...

Courses: Genetics Plant Biology