View stunning SlideShares in full-screen with the new iOS app!Introducing SlideShare for AndroidExplore all your favorite topics in the SlideShare appGet the SlideShare app to Save for Later — even offline
View stunning SlideShares in full-screen with the new Android app!View stunning SlideShares in full-screen with the new iOS app!
Evidence of Evolutionary Relationships• Molecular evidence:– Comparative Biochemistry• Similar pigments (in plants)• Similar enzyme-controlled chemical reactions• Similarities in DNA structure• Similar proteins
Structural Evidence in Plants• External structure• Seeds• Internal structure:– Conducting tissue – carries materials– Xylem – carries water and nutrients– Phloem – carries food
Molecular Evidence in Plants• Pigments – absorb light• Chromatography – lab technique to separatepigments in plants
Molecular Evidence in Plants• Enzymes – speed up chemical reactions• Enzymes are specific