The attached image has the following Newick format: ((HIV-1 retropepsin:0.67441,(HIV-2 retropepsin:0.40370, Simian immunodeficiency:0.40370):0.27071):0.963537,(Bovine immunodeficiency:1.34405,Feline immunodeficiency:1.34405):0.295328); Examine the branch lengths. What do they tell you about the evolutionary time between the branch points? • Which branchings are more ancient and which are more recent? • What would you conclude about these immunodeficiency virus proteases, based on this small analysis?

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.