 Read/post comments
Be the first to rate this resource! To rate this resource, click a star:
|
Overview:
In this case study, the evolutionary relationship of the extinct Woolly mammoth to modern elephants and other species is investigated. Complete mitochondrial DNA (mtDNA) sequences are used for this purpose.Author/Source:
DNA to Darwin Grade level:
9-12 Time:
1-2 hours Teaching tips:
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. Concepts:
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details. - Biological evolution accounts for diversity over long periods of time. (LS4.A, LS4.D)
- Life forms of the past were in some ways very different from living forms of today, but in other ways very similar. (LS4.A)
- Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry. (LS4.A)
- Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa. (LS4.A)
- Evolutionary trees (i.e., phylogenies or cladograms) portray hypotheses about evolutionary relationships.
Teacher background: |
