lecture%203%20evidence%20of%20evolution%20C

lecture%203%20evidence%20of%20evolution%20C - 10/6/09...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
10/6/09 1 OVERVIEW - EVIDENCE OF EVOLUTION I. Fossil record A. Extinction B. Law of succession C. Transitional forms II. Vestigial organs III. Homology A. structural B. developmental C. molecular IV. Direct observation of changes Are you are wearing the results of molecular homology right now? Genetic Engineering of Crop Plants Bacteria Bacillus thuringiensis produces toxin that is lethal to cotton pests (bollworms) Bacterial genes that encode toxin can be inserted into crop plants - cotton “Bt cotton” express toxin, kills pest Grown on millions acres worldwide All because bacteria, plants share common ancestor, use same genetic code OVERVIEW - EVIDENCE OF EVOLUTION I. Fossil record A. Extinction B. Law of succession C. Transitional forms II. Vestigial organs III. Homology A. structural B. developmental C. molecular IV. Direct observation of changes Futuyma fig 1.2 Natural experiment Antibiotic use for childhood ear infections Finland, 1979-1993 Controlled experiment Alpine skypilot Rocky Mts Sierra Nevada from timberline to tundra
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

lecture%203%20evidence%20of%20evolution%20C - 10/6/09...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online