- DNA to Darwin
- Classroom activity
Time: 2-3 hours
Students build a phylogenetic tree from the chloroplast genome in order to learn about the origin of flowers and the characteristics of the first flowering plants.
- [History of life: Grades 13-16] Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- [History of life: Grades 13-16] Biological evolution accounts for diversity over long periods of time.
- [Evidence of evolution: Grades 13-16] Similarities among existing organisms (including morphological, developmental, and molecular similarities) reflect common ancestry and provide evidence for evolution.
- [Nature of science: Grades 13-16] A hallmark of science is exposing ideas to testing.
- [Nature of science: Grades 13-16] Scientists can test ideas about events and processes long past, very distant, and not directly observable.
- [Nature of science: Grades 13-16] Scientists may explore many different hypotheses to explain their observations.
- [Studying evolution: Grades 13-16] Scientists use multiple lines of evidence (including morphological, developmental, and molecular evidence) to infer the relatedness of taxa.
- [Studying evolution: Grades 13-16] Evolutionary trees (i.e., phylogenies or cladograms) portray hypotheses about evolutionary relationships.
- [Studying evolution: Grades 13-16] Evolutionary trees can be used to make inferences and predictions.
There are no NGSS/DCI concepts currently linked to this resource.
Be sure to test the free software used in this lab before attempting it with students. Some users have reported trouble, while others have had none. Use this resource to relate evolutionary concepts to the topic of plant reproduction (or get more suggestions for incorporating evolution throughout your biology syllabus).