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An Evolutionary Approach to Teaching about Ferns in a Plant Kingdom Course

(Complete Item Description)

Abstract:: This exercise should be used to have students form their own classification of ferns by observing a variety of structural modifications in several ferns. The activity will give the students an understanding of some of the problems involved with phylogenetic classifications.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: Association for Biology Laboratory Education (ABLE)

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Morphological and Molecular Methods for Creating Phylogenetic Trees

(Complete Item Description)

Abstract:: In modern systematics, both morphological features and DNA or amino acid sequences are used to determine phylogenetic relationships. This two-week exercise demonstrates two methods used by systematists to create phylogenetic trees. In the first week students score morphological features of fictional and real organisms, create data matrices showing number of synapomorphies, and then use the matrices to draw phylogenetic trees. In the second week they use Bio Workbench, an online bioinformatics software package, to create phylogenetic trees based on nucleotide or amino acid sequences. Students learn how modern systematics helps answer questions about ecology, evolution, and behavior.

Subject:: Science and Technology
Grade Level:: Post-secondary
SubTopics:: Green
Collection:: Association for Biology Laboratory Education (ABLE)

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