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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...
bioinformatics autosome homologous chromosomes homologous recombination sex chromosome sex determination sex reversal mutations
Essay
66

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18

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Helping Students to Overcome STUMPS: Scientific terms undermined by meanings peripheral to science
Many terms and phrases that are ubiquitous in everyday use have very different meanings in science. As a result, biology students often hold prior conceptions that are difficult to change. In this essay, I refer to such problematic terms as...
Evolution fitness process of science tree of life metacognition language misconceptions Terminology Theory
Lesson
93

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56

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Does it pose a threat? Investigating the impact of Bt corn on monarch butterflies
Aspiring scientists know that a hallmark of science is that experiments are repeatable and testable.  However, students do not often get opportunities to explore the replicability of science.  Using a current “hot topic” of...
ecology Community Ecology Bt corn Genetic modification Monarch butterflies
Lesson
101

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64

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Coevolution or not? Crossbills, squirrels and pinecones
This case reinforces the concept of coevolution as a reciprocal change in genetic structure between or among two or more populations, by having students analyze and interpret data, build a descriptive model of the system, and use data to make...
fitness Coevolution Co-adaptation
Lesson
85

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35

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Bad Cell Reception? Using a cell part activity to help students appreciate cell biology, with an improved data plan and no loss in coverage
With a veritable myriad of cell parts to cover, it is easy for educators to become locked into marathon presentations that become taxing for both the instructor and the students. While we hope and expect that students master this material, the...
primary literature prokaryotes Cell parts Eukaryotes Organelle function Organelles