How has genetic engineering eliminated the need to do this A engineered

How has genetic engineering eliminated the need to do

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culture and sprayed on crops as an insecticide. How has genetic engineering eliminated the need to do this? A. engineered motility for the bacteria so they can move to the crops themselves B. put the toxin gene into the plants themselves to make their own toxin C. engineered insects to be able to use Bacillus thuringienesis as a food source D. put the toxin gene into humans so that they are resistant Feedback: Feedback: Correct Question 17 of 40 The place where Darwin noticed finch and tortoise differences that helped him develop his theory of evolution was ________? A. the Malay Archipelago B. the Galapagos Islands C. Australia D. Africa E. Brazil Feedback: Feedback: Correct Question 18 of 40 Which individuals in a population are most important in determining the numbers for the Hardy-
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4/5/20, 3 : 06 PM APUS CLE : BIOL133 C002 Sum 19 : Tests & Quizzes Page 7 of 15 2.5/ 2.5 Points 2.5/ 2.5 Points 2.5/ 2.5 Points Weinberg principle since one can tell their genotype from their phenotype? A. homozygous recessive B. mutated C. heterozygous D. homozygous dominant E. fittest Feedback: Feedback: Correct Question 19 of 40 The web of life model and the ring of life model of phylogeny both rely on which mechanism? A. horizontal gene transfer B. eukaryote-first hypothesis C. gene drift D. sexual selection Feedback: Feedback: Correct Question 20 of 40 What is the Hardy-Weinberg principle useful for to geneticists? A. to assess how bad an allele is for an individual B. to predict when genetic drift will occur C. to determine when extinction will happen D. to what degree a population is evolving for a gene Feedback: Feedback: Correct Question 21 of 40 Which population would be more likely to be affected by genetic drift?
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4/5/20, 3 : 06 PM APUS CLE : BIOL133 C002 Sum 19 : Tests & Quizzes Page 8 of 15 2.5/ 2.5 Points 2.5/ 2.5 Points 0.0/ 2.5 Points A. oak trees in Canada B. snails on an island in the Mississippi River C. cats in New York City D. mosquitoes in Wisconsin Feedback: Feedback: Correct Question 22 of 40 In some organisms mating preference leads to males having characteristics much different from the females (like being larger or more colorful) which is termed A. sexual dimorphism B. sexual heterogeneity C. secondary mating D. mate inversion Feedback: Feedback: Correct Question 23 of 40 When performing gel electrophoresis, how is it possible to determine the size of the DNA fragments? A. calculate the force of the electric current B. measure the distance moved with a ruler C. pour the gel with a certain pore size and density D. compare to known standards also run on the gel Feedback: Feedback: Correct Question 24 of 40 A species of fly lives in a canyon. Some of the flies prefer the side that gets sunlight during the day, while others prefer the shade. Over time, they develop different mutations and start to mate with those that prefer the same conditions. What would this be due to?
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4/5/20, 3 : 06 PM APUS CLE : BIOL133 C002 Sum 19 : Tests & Quizzes Page 9 of 15
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