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Question 241pts Housekeeping genesare expressed by most of the cells in an organ

Question 241pts Housekeeping genesare expressed by most of the cells in an organism.prevent repressors from binding the promoter.prevent operators from expressing genes.break down a cells DNA.Flag this QuestionQuestion 251pts Which of the following statements about the evolutionary relatedness of organisms is FALSE?Predictions of evolutionary relatedness that are based on the fossil record often agree with predictions that are based on continental drift.Predictions of evolutionary relatedness that are based on fossil evidence often agree with those that are based on protein sequences.Predictions that are based on DNA sequences provide the strongest evidence that two organisms are related.Predictions of evolutionary relatedness that are based on DNA often contradict those that are based on anatomical evidence.Flag this QuestionQuestion 261pts Many organisms are darker on their dorsal surface and lighter on their ventral surface. They are difficult to see from both above and below because of this ________, which is called countershading.fixationadaptationpattern of resistanceselection pressureFlag this QuestionQuestion 271pts Which of the following statements best describes what happens in gene flow?Crossing-over creates new combinations of alleles during gamete formation.Chance events alter a populations gene pool.New individuals that join a population contribute their alleles to its gene pool.Alleles that make an individual more successful move from one population to another.Flag this QuestionQuestion 281pts Suppose a populations gene pool consists of theAandaalleles in a ratio of 80:20. If the population has reached equilibrium, the next generation will consist of genotypes in a ratio of25AA:50Aa:25aa.36AA:28Aa:36aa.36AA:48Aa:16aa.64AA:32Aa:4aa.Flag this QuestionQuestion 291pts Flounder (a type of fish) generally match the color of the sandy bottoms of the bodies of water they inhabit. Their color functions like camouflage, making them difficult for predators to detect. This is an example ofguided mutation.speciation.adaptation.continental drift.Flag this QuestionQuestion 301pts Peppered moths are generally light in color and blend into the trunks of the trees they live on. Populations of peppered moths that are found in areas where soot has blackened the tree trunks are dark in color. This example demonstratesnatural selection.vestigial coloration.genetic drift.artificial selection.Question 241pts Housekeeping genesFlag this QuestionQuestion 251pts Which of the following statements about the evolutionary relatedness of organisms is FALSE?Flag this QuestionQuestion 261pts Many organisms are darker on their dorsal surface and lighter on their ventral surface. They are difficult to see from both above and below because of this ________, which is called countershading.Flag this QuestionQuestion 271pts Which of the following statements best describes what happens in gene flow?Flag this QuestionQuestion 281pts Suppose a populations gene pool consists of theAandaalleles in a ratio of 80:20. If the population has reached equilibrium, the next generation will consist of genotypes in a ratio ofFlag this QuestionQuestion 291pts Flounder (a type of fish) generally match the color of the sandy bottoms of the bodies of water they inhabit. Their color functions like camouflage, making them difficult for predators to detect. This is an example ofFlag this QuestionQuestion 301pts Peppered moths are generally light in color and blend into the trunks of the trees they live on. Populations of peppered moths that are found in areas where soot has blackened the tree trunks are dark in color. This example demonstrates

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