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Copyright Notice! This PowerPoint slide set is copyrighted by Ross Koning and is thereby preserved for all to use from plantphys.info for as long as that website is available. Images lacking photo credits are mine and, as long as you are engaged in non-profit educational missions, you have my permission to use my images and slides in your teaching. However, please notice that some of the images in these slides have an associated URL photo credit to provide you with the location of their original source within internet cyberspace. Those images may have separate copyright protection. If you are seeking permission for use of those images, you need to consult the original sources for such permission; they are NOT mine to give you permission.
(c) Data set (presence and absence of SINEs): 1 SINE present 0 SINE absent ? still undetermined Whales and hippos share four unique SINEs (4, 5, 6, and 7) Cow Deer Whale Hippo Pig Peccary Camel Locus Figure 28.4 (a) Traditional Hypothesis: Whales diverged before the origin of artiodactyls. (b) Alternative Hypothesis: Whales and hippos share a common ancestor. Cow Deer Whale Hippo Pig Peccary Camel Astragalus (ankle bone) Loss of pulley- shaped astragalus Gain of pulley- shaped astragalus Perissodactyls (horses and rhinos) ARTIODACTYLS
4th Ed. Fig. 29.8 Pg 601 This is the tree-of-life cladogram used by your textbook It varies in some minor ways, mostly additions. It shows “uncertainty” as a multifurcation (polytomy).
As shown, the protists together are a(n)... A.Clade (are monophyletic). B.Grade (are paraphyletic). C.Unnatural Taxon (are polyphyletic).
Is it easier to evolve a new characteristic or to lose an evolved characteristic?. A.Easier to gain a feature. B.Easier to lose a feature.