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Evidence for Evolution

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by

Michael Turgeon

on 21 February 2011

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Transcript of Evidence for Evolution

Evidence for Evolution Fossil Evidence Embryos Central Dogma Fossils show the similarities between species that are extinct and their modern relatives: When fossils show similar structures, the species evolved from a common ancestor Are they related?


Do they have a common ancestor? Are they related?


Do they have a common ancestor? Are they related?


Do they have a common ancestor? Are they related?


Do they have a common ancestor? Are they related?


Do they have a common ancestor? Embryo: an organism in its early stages of development Similar embryos show organisms are related When species have similar DNA they are related Biochemical evidence is the best evidence of evolution Biochemical Evidence Biochemical evidence = comparing DNA or proteins DNA Comparisons between Humans and other Species DNA RNA Trait Similar DNA Similar RNA Similar Protein Similar Trait Which of these are most closely related? Which of these are most closely related? How do you know? How do you know? Protein shared somebody you are related to The species that two species evolved from species that are related evolved from the same ancestor Common Ancestor Evidence suggests species have common ancestors Biochemical evidence is the best evidence of evolution Comparative Anatomy
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