CourseSource: Resources

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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

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9293

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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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5646

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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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1793

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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