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Overview:
An interactive and engaging web activity that compares the number of mutations in the mitochondrial genomes to determine ancestry and relatedness.Author/Source:
Dolan DNA Learning Center Grade level:
9-12 Time:
20-30 minutes Teaching tips:
To access this activity, click on media/animation at the top of the screen and then select "Solving the Mystery of the Neandertals." This activity requires Shockwave or Flash Player. Concepts: - Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- An organism’s features reflect its evolutionary history.
- The fossil record documents the biodiversity of the past.
- The fossil record documents patterns of extinction and the appearance of new forms.
- All life forms use the same basic DNA building blocks.
- Scientists can test ideas about events and processes long past, very distant, and not directly observable.
- Our knowledge of the evolution of living things is always being refined as we gather more evidence.
- Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa.
- Scientists use fossils (including sequences of fossils showing gradual change over time) to learn about past life.
Teacher background: |
