Module 8 Activity 1 Phylogenetic Trees as a Way to Organize Life PDF

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BIOS1010 General Biology Module 8 Activity 1

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Phylogenetic Trees as a Way to Organize Life Use the App Click and Learn’s module Creating Phylogenetic Trees from DNA sequences or the website Creating Phylogenetic Trees from DNA Sequences (biointeractive.org) to answer the following questions. 1. According to your textbook, what is a phylogenetic tree? A diagram that represents evolutionary relationships among organims 2. What are two ways that we can classify species? Kingdom and phylum 3. Which is a better way to show how related two species are? Why? Phylum, because you can look into the genetic sequence and see the similarities 4. What are the two common types of mutations that can be used to determine how related two species are? Related genes to disease and their susceptibility to the disease 5. What is the technique called that allows you to compare sequences? When comparing sequences what is the most important thing you need to make sure you are doing? Sequence alignment, seeing how many letters are not the same

6. What is a branchpoint? A split where a single lineage evolves into a new distinct one 7. How do phylogenetic trees based on DNA compare to those based on anatomical differences compare? Predict rates shared by organisms, can clear up uncertainties generated by comparative anatomy 8.

In this unit we are studying evolution as well as diversity, does two species being on the same phylogenetic tree mean that they evolved from each other? Why or Why not? Yes, because the phylogenetic tree is a way to connect species to one another....