Discuss how two of the following alter allele frequencies in populations: nonrandom mating, genetic
drift, gene flow, and natural selection What will be an ideal response?
Gene flow can alter allelle frequencies in populations by introducing new genotypes to a population.
Natural selection alters allele frequencies of a population by increasing the frequency of adaptive traits
in the next generation.
Genetic drift can alter allele frequencies by randomly eliminating alleles from a population.
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To be useful to scientists, a hypothesis must be ________; in other words, the hypothesis must be able to be confirmed or discredited.
Fill in the blank(s) with the appropriate word(s).
Assume that several members of a particular species of mosquito inadvertently entered an airplane in Asia and were transported to the United States, where they thrived as an isolated colony. What is likely to occur over time?
a. The isolated species will breed with closely related species in the United States, forming a new species. b. The species undergo sympatric speciation. c. The colony could genetically diverge in isolation and a new species could be formed. d. Genetic divergence of the population would eventually cease. e. Isolation would encourage extinction.
Where does the copper used for wiring and plumbing come from?
A. Most copper is found in ocean sediments. B. Most copper is mined from the ground. C. Most copper is found along riverbanks. D. All copper is mined from the surface. E. All copper is manufactured synthetically in factories.
Suppose you estimate the following regression of a Movie's ticket sales and the season of year (Summer =1 if in May, June, July, August, =0 otherwise) that movie's initial release was in: Sales = 295,342 + 40.24 Summer. You are willing to believe you have a random sample of store locations, and a sufficiently large sample size. Which statements are well justified by the regression results?
A. Moving the scheduled release of a movie from the winter to the summer will increase its sales by 40.24. B. Movies released in the summer tend to have higher ticket sales. C. Moving the Jurassic World release date to Christmas instead of 4th of July weekend, would have resulted in ticket sales of 295,342. D. Promotional activities increase the number of movie tickets sold holding other factors fixed.