Evidence of Evolution Beyond the Fossil Record. How Does Anatomy and Structure Show Evidence of Ancestry? Comparing the anatomy of different types of.
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Post on 31-Mar-2015
<ul><li>Slide 1</li></ul> <p>Evidence of Evolution Beyond the Fossil Record Slide 2 How Does Anatomy and Structure Show Evidence of Ancestry? Comparing the anatomy of different types of organisms often reveals basic similarities in body structures, even though their functions may be very different. Slide 3 Common Ancestor A Species from which two or more species have diverged. Slide 4 Slide 5 Covergent Evolution Slide 6 Homologous Structures Structures that share common ancestry. Slide 7 Slide 8 Analogous Structures Analogous structures have similar forms, but they are not due to common ancestry. Slide 9 Slide 10 Vestigial Structures Vestigial structures are anatomical structures of organisms in a species, which have lost much or all of their original function. Structures that are considered to be evidence for an organisms evolutionary past. Slide 11 Flightless Cormorant of the Galapagos Slide 12 Slide 13 Vestigial Pelvis of the Whale Slide 14 Femur and Pelvis of Whale Slide 15 How is Embryonic Development Evidence for Evolution? The evolutionary history of organisms is seen in the development of embryos. Slide 16 Slide 17 What are some common structures that vertebrate embryos share? Tail bud Pharyngeal pouches Buds that become limbs Slide 18 Slide 19 How are Biological Molecules a Record of Evolution? Species that share common ancestry more closely, have more amino acid sequence in common. Species that have diverged from a distant common ancestor have more differences in amino acid sequences. Slide 20 The Hemoglobin Protein shows common ancestry. Slide 21 Hemoglobin Comparison SpeciesAmino acid differences Gorilla1 Rhesus monkey8 Mouse27 Chicken45 Frog67 Lamprey125 Slide 22 Great Moments in Evolution </p>
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Structural Evidence of Evolution Distinguish between homologous and analogous structures. Which is best used as supportive evidence of recent common ancestry?
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ASHG Ancestry Testing Statement American Society of Human Genetics Ancestry Testing Statement November 13, 2008 Scope Ancestry testing and ancestry estimation are utilized in a