Biology › Section J · Evolution › Topic J.9
Sequence data and the tree of life
Comparing DNA sequences is how modern phylogenies are built — and the same data revealed that Darwin's tidy single-trunked tree is too simple for a world full of gene-swapping organisms.
In this topic
- Sequences reshaped the tree
- From sequence similarity to kinship
- Aligning sequences
- Worked example: Computing percent identity
- Worked example: Reading BLAST output
- Trees and outbreaks from sequence data
- Horizontal gene transfer breaks the tree
- Eukaryotes borrow genes too
- Genome fusion and the nucleus
- Web and ring models
- Common mistakes to avoid
- Key takeaways
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