Cladograms

Mr. Anderson explains cladograms, which are hypotheses about the relationships between organisms based on shared characteristics. He discusses how to create a cladogram, the concept of outgroups, and the importance of common ancestors. The video also covers adding new species to a cladogram and the principle of parsimony, which suggests the simplest explanation is often the best. Modern cladograms use DNA sequencing to determine evolutionary relationships.

How can characteristics be lost in evolutionary terms according to the discussion?

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Discuss the role of DNA in modern cladogram construction.

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What is the relationship between homologous structures and common ancestors?

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