Evolution Bluff Evidence Mechanisms Natural Selection Wild Card Q $100 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Q $200 Q $200 Q $200 Q $300 Q $300 Q $300 Q $300 Q $300 Q $400 Q $400 Q $400 Q $400 Q $400 Q $500 Q $500 Q $500 Q $500 Q $500 Darwin Final Jeopardy $100 Darwin What are Darwin’s four postulates? $100 Answer Darwin 1. 2. 3. 4. In every population there is variety. Some of that variety is passed on to offspring. In every generation there are more individuals born than can survive. Over time, the individuals who are the most fit for their environment will survive better to reproduce. $200 Darwin Darwin identified thirteen different species of finches in the Galapagos, which he determined had all descended from a common ancestor. These finches had developed different beak shapes to adapt to the various food sources on different islands. This is an example of _________________. $200 Answer Darwin Adaptive Radiation $300 Darwin What is the name of Darwin’s book laying out his theory of evolution through natural selection? $300 Answer Darwin On the Origin of Species $400 Darwin What is speciation and how is it related to the picture below? $400 Answer Darwin Speciation is the formation of a new species $500 Darwin Where did Darwin conduct most of his research that lead him to develop his ideas about descent with modification through natural selection? $500 Answer Darwin The Galapagos Islands $100 Evidence Some animals have structures with similar origins but different purposes, such as the flipper of a whale and the wing of a bat. These are called _____________ structures. $100 Answer Evidence Homologous Structures $200 Evidence What are 2 examples of vestigial structures in the human body? $200 Answer Evidence The tailbone and the appendix $300 Evidence What is an analogous structure? $300 Answer Evidence Analogous structures have a SIMILAR function but DIFFERENT evolutionary origin. $400 Evidence What is comparative embryology and how is it used to support evolution? $400 Answer Evidence Embryology is the study of early stages of animal development. $500 Evidence What are 6 forms of evidence for evolution that we discussed in class? $500 Answer Evidence 1. Fossils 2. DNA 3. Homologous structures 4. Vestigial structures 5. Biogeography 6. Comparative embryology $100 Mechanisms What is the relative frequency of an allele? $100 Answer Mechanisms The number of times a particular allele occurs in a gene pool $200 Mechanisms What are 2 sources of genetic variation? $200 Answer Mechanisms Mutation and independent assortment $300 Mechanisms What is genetic drift? $300 Answer Mechanisms Random changes in allele frequency $400 Mechanisms What conditions must be met in order to establish Hardy-Weinberg Equilibrium? $400 Answer Mechanisms 1. There are no mutations 2. Mating is random 3. Populations are infinitely large 4. There is no selection $500 Mechanisms What are 3 types of reproductive isolation? $500 Answer Mechanisms 1. Behavioral isolation 2. Geographic isolation 3. Temporal isolation $100 Natural Selection What are 3 types of natural selection? $100 Answer Natural Selection 1. 2. 3. Stabilizing selection Disruptive selection Directional selection $200 Natural Selection The peppered moth provides an example of what type of natural selection? $200 Answer Natural Selection Directional selection, where allele frequency shifts in one direction. $300 Natural Selection What is fitness in terms of evolution and natural selection? $300 Answer Natural Selection The ability to survive and reproduce. $400 Natural Selection Darwin’s finches are an example of this type of selection. $400 Answer Natural Selection Disruptive selection $500 Natural Selection A population of clams changes over time so that medium-sized clams outnumber large or small sized clams. This is an example of what type of natural selection? $500 Answer Natural Selection Stabilizing selection $100 Wild Card What is evolution? $100 Answer Wild Card Genetic change in species over a very long period of time $200 Wild Card What is a gene pool? $200 Answer Wild Card All genes present in a population $300 Wild Card Which animal is most closely related to humans? $300 Answer Wild Card The chimpanzee $400 Wild Card Humans and mice share around 60% of their DNA, while humans and chimpanzees share roughly 98% of their DNA. Which are more closely related? $400 Answer Wild Card Humans and chimpanzees $500 Wild Card The diagram below shows a series of undisturbed rock strata. A different species of fish is found in each layer. What are the relative ages of these fish from oldest to youngest? $500 Answer Wild Card C, B, A Final Jeopardy If a population includes 250 individuals homozygous dominant (RR: red flowers), 250 individuals heterozygous for this gene (Rr: red flowers), and 125 homozygous recessive (rr: white flowers), what are the frequencies of the alleles for red and white? Final Jeopardy Answer 0.60 red, 0.40 white