There are two species of elephant seals: northern elephant seals, Mirounga angustirostris, found off the western coast of North America from Baja California to the Gulf of Alaska, and southern elephant seals, M. leonina, found in the southern oceans. Humans and mice have the same number of chromosomes. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? Absence of selection Of the following, which is the best next step for the researchers to best determine the long-term effectiveness of these insecticides with regards to the development of resistance? Which of the following best explains the relationship between coat color and predation rate in the rock pocket mouse population on the lava flow rocks with respect to the different coat color phenotypes? These building blocks combined to form polymers, such as crude proteins. A captive population of cheetahs kept in a confined area will have a greater risk of contracting and passing on a virus. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? Assuming that the population is in HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MNMN? WebProgress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and; A group of scientists found that in one population the frequency of the M allele was 0.82, and the frequency of the N allele was 0.18. C. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. Catalase is a protein enzyme that catalyzes the breakdown of hydrogen peroxide (H2O2) into water and oxygen gas in the cells of many living organisms. A. Even though the population has rebounded following restrictions on seal hunting, genetic variation is greatly reduced in the northern species compared to that in the southern species. Scientists are concerned that the lowlands will become much warmer by the end of the twenty-first century and will become unsuitable for this lowland lizard species. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. Because the mice are highly inbred, they are essentially identical to one another. Ap biology unit 1 test answers - anfk. Which of the following student claims is best supported by the data provided? In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. The MC1RD allele is not responsible for dark coat color in the Carrizozo population, so the dark coat color is likely a result of convergent evolution. The animals in population A were reproductively isolated from those in populations B, C, and D. Mollusk fossils were excavated and collected from a coastal cliff. c) storing bile that is released into the bloodstream. When a population is reduced, new niches become available in the environment, which can trigger adaptive radiation. Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. Relationships of selected organisms based on catalase structure. Which of the following would most likely represent the types of individuals found in one of the species resulting from shape becoming a prezygotic isolating mechanism in the initial population represented in Figure 1 ? C. Yeast and mushrooms are the most closely related, because they are both fungi. D. The animals in population A mate at different times of year, causing their gametes to be incompatible with those from animals in populations B, C, and D. B. In addition to the ABO blood groups, humans have an MN blood type system in which the M and N alleles are codominant to one another. A. In an experiment, the scientist creates two groups of twenty highly inbred mice. The liver helps the circulatory system by _________. The presence of MC1RdMC1Rd alleles in the East lava flow population is an indication of gene flow from mice populations living on light granite rocks. Consider the circuit in the given figure with resistors R1=2500,R2=4500R_1=2500 \Omega, R_2=4500 \OmegaR1=2500,R2=4500, and R3=1200R_3=1200 \OmegaR3=1200, and batteries with emfs E1=6.5V\mathcal{E}_1=6.5 \mathrm{~V}E1=6.5V and E2=1.3V\mathcal{E}_2=1.3 \mathrm{~V}E2=1.3V. What is the magnitude of the current in the circuit? In an experiment, the scientist creates two groups of twenty highly inbred mice. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. If a fire caused the surface of the ground in the habitat of the species to become darker in color, which of the following claims about the impact on the allele frequencies in this population is most reasonable? B. Bacterial ribosomes cannot recognize eukaryotic mRNA and will not translate the codon sequence. Which of the following best describes the processes occurring between the mouse populations and their environments? Henslow's sparrow populations came to a peak in the mid1900s. Select the correct answer for the following questions: Scientists determined the frequencies of the M and N alleles in five localized and stable human populations in the Philippines, Immigration of individuals from Metro Manila into the two populations. A recent survey of ten Midwest counties are shown in Figure 1. No new mutations B. Which of the following best describes what occurred during the periods indicated by the arrows? B. If you are giving the alternate exam for late testing, say: It is Friday afternoon, May 24, and you will be The frequency of homozygous recessive individuals will increase because light-colored fur absorbs less heat. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. Start each population with genetically identical bacterial cells from a single culture to make sure that the initial genetic variation in all of the populations was exactly the same. C. Set up a new experiment in which these insects are sprayed with two different insecticides to see if they are more effective than Insecticides #1 and #2. Which of the following best predicts the effect of the enclosure on the O'Neill population? Facts about the test: The AP Biology exam has 60 multiple choice questions and you will be given 1 hour Only males can inherit the color blindness condition. B. The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. D. In the presence of available energy and the absence of a significant quantity of atmospheric O2O2 simple proteins will form spontaneously from a mixture of amino acids. Which of the following best explains the phenotypic pattern in the moths over time? The woodlot environment is arid and species 1 and 2 are well-adapted to conserve water. The population was predominantly black throughout the nineteenth century. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. Henslow's sparrow is a songbird found in North American grasslands. WebView AP Biology Unit 7 Evolution; MCQ Questions 14.pdf from BIOLOGY 101 at Oakland High School, Oakland. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. Based on the data in table 1, which of the following best provides evidence to support this claim? D. By 1940, most genetic variation for speed had been lost from the gene pool. A. Immigration of individuals from Metro Manila into the two populations, Which of the following best explains the trend shown in Figure 1? B. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? Geographic isolation will create separate gene pools, leading to speciation over time. Add an additional treatment group to the experiment to measure the effectiveness of another insecticide (Insecticide #3) over several generations. C. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? Mushrooms and potatoes are most closely related, since the node they share gave rise to all of the other organisms. A model of the investigation is shown in Figure 1. If a fire caused the surface of the ground in the habitat of the species to become darker in color, which of the following claims about the impact on the allele frequencies in this population is most reasonable? B. By 1940, most genetic variation for speed had been lost from the gene pool. In an exercise to understand how genetically controlled physical traits could affect speciation, a theoretical population was imagined that contained organisms with three shapes and three levels of pigmentation, as illustrated in Figure 1. (a)(a)(a) What is the angular momentum of a 2.8kg2.8 \mathrm{~kg}2.8kg uniform cylindrical grinding wheel of radius 28cm28 \mathrm{~cm}28cm when rotating at 1300rpm1300 \mathrm{rpm}1300rpm ? The frequencies of the different phenotypes in the moth population changed randomly due to genetic drift. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? By the end of the twentieth century, the peppered version of the moth was again more common than the black version. There are two species of elephant seals: northern elephant seals, Mirounga angustirostris, found off the western coast of North America from Baja California to the Gulf of Alaska, and southern elephant seals, M. leonina, found in the southern oceans. Natural selection acted on variation that was present in both populations A and B, and the lack of gene flow eventually led to the formation of two new species. B. C. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. Which of the following is closest to the frequency of the MC1RDMC1RD allele in the Tule Mountain population? A. Specimen 1 There will not be any new individuals with the aa genotype. A. The island was surveyed again in 2015, and scientists determined that the giant kangaroo rats originally in population A are now to be considered as a new species. Which of the following would most likely represent the types of individuals found in one of the species resulting from shape becoming a prezygotic isolating mechanism in the initial population represented in Figure 1 ? C. The plant species will flower earlier in the spring in response to rising temperatures before the arrival of the pollinators, so seeds will not be produced. Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. B. D. The original habitat was tropical, which increased the rate of mutation and led to rapid diversification. The model is shown in Figure 1. Start each population with genetically identical bacterial cells from a single culture to make sure that the initial genetic variation in all of the populations was exactly the same. C. Black Circle, grey box, and white triangle. The island was surveyed again in 2015, and scientists determined that the giant kangaroo rats originally in population A are now to be considered as a new species. In an exercise to understand how genetically controlled physical traits could affect speciation, a theoretical population was imagined that contained organisms with three shapes and three levels of pigmentation, as illustrated in Figure 1. Two drag forces act on a bicycle and rider: FD1F_{\mathrm{~D} 1}FD1 due to rolling resistance, which is essentially velocity independent; and FD2F_{\mathrm{~D} 2}FD2 due to air resistance, which is proportional to v2v^2v2. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. Which of the following best describes what occurred during the periods indicated by the arrows? The density of air is I.29kg/m3\mathrm{I} .29 \mathrm{~kg} / \mathrm{m}^3I.29kg/m3. Cells with mitochondria were able to utilize metabolic energy more efficiently. C. The group of mice fed the mutagen will show a greater ability to digest the food, because the higher genetic variation within the group makes it more likely that some individuals will have a combination of genes better adapted to the new food. Cells with mitochondria were able to utilize metabolic energy more efficiently. Which statement below best states an alternative hypothesis Fox could have used to frame his research? Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Image courtesy of Pixabay. Scientists studying the fossils observed patterns of changing shell shape in the mollusks. In the preceding exercise, if the stick is moving in a direction along its length (like a properly thrown spear), how long will you measure its length to be? Geographic isolation will create separate gene pools, leading to speciation over time. There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? Which of the following best describes what occurred during the periods indicated by the arrows? Cells with mitochondria were able to utilize metabolic energy more efficiently. Can the voltage across a battery's terminals be higher than the battery's rated voltage? 19 Attempt 2: Communities & Ecosys, Teaching and Learning Across the Lifepsan. Convergent evolution, because these organisms do not share a recent common ancestor. Which of the specimens indicated in the table is the oldest? The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. All of the selective breeding programs ended in 1940. The M4 and M5 populations have the lowest genetic diversity of all populations. Select the best alternate hypothesis to support this claim. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. Suppose the average concentration of SO2\mathrm{SO}_{2}SO2 is measured to be 400g/m3400 \mu \mathrm{g} / \mathrm{m}^{3}400g/m3 at 25C25^{\circ} \mathrm{C}25C and 1 atm. C. The plant species will flower earlier in the spring in response to rising temperatures before the arrival of the pollinators, so seeds will not be produced. White circle, grey circle and black circle. A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. B. Which of the following best predicts the impact on the lizard species if there is a gradual increase in the average temperatures found in both the lowlands and mountains in this region? Which of the following student claims is best supported by the data provided?
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