Evidence for Evolution POGIL Model #1Family Characteristics 1. 2. Organisms in row 2 shares traits with parents 3. 4. The organisms in the 3rd line are related to first line b/c the first line are grandparents to the 3rd line containing similar characteristics found in both lines 5. a. All organisms in the 3rd generation have at least 1 similar trait as the grandparents b. These traits were passed from parents to offspring due to DNA being duplicated and passed on 6. a. All organisms exhibit at least one trait that is not the same as the grandparents b. The people that married into the family introduced new traits to the family. Or, mutation could have occurred during crossing over introducing new traits to the family. 7. The line of offspring that shares the most traits with the parent organisms in the first line is row 2 (the children of the parents). Based on evidence found in model 1, the children (row 2) exhibit traits that link to the original parents. The organisms in the 3rd generation will have new traits compared to the 2nd generation because of individuals who married into the family. 8. The line that shares the most DNA with the parent organisms in the first line is the children (line 2) 9. The original parent organisms in the first line in Model 1 get their traits from their ancestors. Model #2: Forelimb Similarities 10. 11. Humans use our forelimbs to grab things, lift things, and to build things. Dog use their forelimbs for to walk, run, play catch, and keep balance. Birds use their forelimbs to fly. And whales use their forelimbs to swim. 12. a. The first similarity is that the ulna and radius are next to each other across all 4 animals. The second similarity is that the metacarpals connect the carpal to the phalanges. b. Differences among the 4 animals: 1. The structure of the phalanges are different 2. the gap between the radius and the ulna 3. The length of the humerus 13. The blue print that determines the structure of the limbs is found in the DNA.