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JEOPARDY. Micro. Macro. Potpourri. 200. 200. 200. 400. 400. 400. 600. 600. 600. 1000. 1000. 1000. FINAL JEOPARDY!. Micro for 200. The environment has changed, and natural selection favors one extreme phenotype. What mode of selection is this? Directional. Micro for 400.
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JEOPARDY Micro Macro Potpourri 200 200 200 400 400 400 600 600 600 1000 1000 1000 FINAL JEOPARDY!
Micro for 200 • The environment has changed, and natural selection favors one extreme phenotype. What mode of selection is this? • Directional
Micro for 400 • How does an egg cell determine whether to allow fertilization by a sperm cell? • Recognition of membrane proteins and carbohydrates
Micro for 600 • What 2 things must be true in order for a trait to be an adaptation? • It must be inheritable and improve chances of survival and reproduction
Micro for 1000 • Under what condition is genetic drift most significant, and why is this the case? • Small populations because random events impact a higher percentage of the population.
Macro for 200 • What type of structures are described as “evolutionary leftovers”? • Vestigial structures
Macro for 400 • How does the presence of fossils serve as evidence of evolution? • We can see that the set of orgs on the planet has changed, and we can find examples of transitional species.
Macro for 600 • Contrast punctuated equilibrium with gradualism. • G: slow constant rate of evolution • PE: faster rate of evolution coinciding with periods of environmental change.
Macro for 1000 • In a DNA hybridization procedure, how do scientists determine the extent of matching of DNA strands? • If it takes a higher temperature to separate the hybrid strands, they are a closer match.
Potpourri for 200 • What must occur in a population for speciation to follow? • Groups within the population must become isolated from each other – no interbreeding can occur.
Potpourri for 400 • What are two issues with the biological species concept? • Doesn’t work for… • Asexually reproducing organisms • Extinct organisms • Specimens that may be sterile
Potpourri for 600 • Specifically, how do biologists use proteins to determine relationships between organisms? • More differences in amino acid sequence indicate a more distant relationship.
Potpourri for 1000 • Phosphofructokinase (Pf) is a protein found in all eukaryotic organisms. Pf contains 136 amino acids. This table compares chimpanzee Pf with Pf from a number of other orgs. Put these orgs in chronological order according to the point in evolutionary time in which their ancestry separated from chimpanzees. Tuna Tree frog Cardinal Italian greyhound Rhesus monkey
FINAL JEOPARDY • In a population of blurgs, 6% have red bellies. The other 94% have blue. The population doubles in size every generation. If all Hardy-Weinberg conditions are met, what percentage of red-bellies might be expected in this population four generations into the future? • 6%. H-W conditions would prevent any evolution, so the genetic makeup would remain the same despite the change in population size.