The researchers built an enclosure to prevent migration into and out of the O'Neill rock pocket mouse population for a period of two years. These alleles code for glycoproteins that act as antigens on the red blood cells. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. This hypothesis states that the first genetic material was RNA, not DNA, and a transitional period led to the emergence of DNA as the storage molecule for genetic material. A. A. A famous study from the nineteenth century involves the peppered moth, Biston betularia, commonly found in Great Britain and Ireland. The warmer temperatures will lead to a drier environment, so the plants will no longer produce enough nectar to attract the pollinators. Neither group of mice will show any change in the ability to digest the food because thousands of years are required to develop such a change. C. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. BIO 1- CH. D. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA. Humans and mice share a recent common ancestor that had the 5-TTAGGG-3 repeat sequence in its telomeres. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. natural 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 is an alternative hypothesis that can be tested to support the RNA World Hypothesis? Dark color is selected for in mice from the West, Mid, and East populations. Are the following statements true or false? Which of the following best describes what occurred during the periods indicated by the arrows? Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. The frequency of the MC1RD allele will decline due to natural selection. B. Specimen 2 Does this exceed the (24-hr) air quality standard of 0.14 ppm? C. The number of species present on Earth will equal the number of species on Earth before the last extinction. Human activities can drive changes in ecosystems that affect the risk of extinction. 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? A scientist is studying the impact of mutagens on genetic variation in mice. Which of the following best describes the expected distribution of proboscis size of the moths at the end of the fiveyear study? A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. WebA. B. D. The number of species present on Earth will equal the number of species on Earth after the last extinction. These building blocks combined to form polymers, such as crude proteins. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. B. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. Based on the data in Figure 1, which of the following would most affect the allelic frequencies of the populations on Isabela and Butuan? Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Which of the following student claims is best supported by the data provided? which of the following best provides evidence to support this claim? Which of the following would be an appropriate alternative hypothesis? Image courtesy of Pixabay. A. Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. One group is given food with an added substance that is known to be a mutagen. To prevent the loss of genes as chromosome ends wear down during DNA replication, the tips of eukaryotic chromosomes have specialized DNA "caps" called telomeres. The animals in population A were reproductively isolated from those in populations B, C, and D. Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change? Convergent evolution, because these organisms do not share a recent common ancestor. Convergent evolution, because these organisms do not share a recent common ancestor. Cattle are equally related to pigs and sheep, because the phylogeny places cattle between pigs and sheep. The researchers wish to increase the reliability of their experimental observations before investigating new claims that chemotherapy-resistant tumors are an example of continuing evolution. Scientists studying the fossils observed patterns of changing shell shape in the mollusks. D. Cells with mitochondria were able to utilize metabolic energy more efficiently. A group of birds is found in an island chain that have all descended from a single ancestral species. 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. The species will undergo artificial selection, as the genes will adapt to warmer temperatures. After 20 generations of allowing this population of about 1000 flies to mate randomly, 10 females and 10 males were isolated from the rest of the population. All of the selective breeding programs ended in 1940. At that time, the moths, normally white with black speckles, known as the peppered variety, became less common than the solid black variety. 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 best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? Observed modern extinction rates will resemble the rates found early in previous extinctions. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. A. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? D. If recently fallen meteorites and meteoroids collected in space are tested, they will not contain organic molecules. Based on the data in Table 1, which of the following best describes the relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? If geologic events lead to a series of new mountain ranges that divide the plateau into several discrete valleys, which of the following best describes how the L. clathratus population would be affected? Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Because cheetahs, Acinonyx jubatus, experienced a bottleneck event about ten thousand years ago, living cheetahs exhibit very little genetic variation compared to other living species of large cats. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. The same species will be found in both static periods, but the species in the second static period will have smaller shells due to the stress of undergoing rapid change. A. The current global warming trend is placing new selective pressures on the species involved in these relationships. 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? By the end of the twentieth century, the peppered version of the moth was again more common than the black version. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. By 1940, most genetic variation for speed had been lost from the gene pool. A . The second group is fed the same food without the mutagen. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. Students created a model showing one possible mechanism for speciation in which a geographic barrier separated one large population into two smaller populations, A and B. A. 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. Convergent evolution, because these organisms do not share a recent common ancestor. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? B. 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. 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. A. Which of the specimens indicated in the table is the oldest? During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. Which of the following best describes what occurred during the periods indicated by the arrows? B. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? B. Bacterial ribosomes cannot recognize eukaryotic mRNA and will not translate the codon sequence. The remaining members of the population are allowed to randomly mate with one another to produce generation 2 and future generations. Based on the phylogenetic relationships shown in Figure 1, which of the following best explains the similarities exhibited by whales, bony fishes, and cartilaginous fishes? D. Increased population sizes over time in the Isabela population, but no change in the Butuan population, B. B. The population was predominantly black throughout the nineteenth century. Humans and mice share a recent common ancestor that had the 5-TTAGGG-3 repeat sequence in its telomeres. B. D. Specimen 4. A. B. The animals in population A were reproductively isolated from those in populations B, C, and D. In an experiment, the scientist creates two groups of twenty highly inbred mice. A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. The degrees of relatedness in several native populations of prairie chickens in Marion and Jasper Counties in Illinois were determined. B. John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, David N. Shier, Jackie L. Butler, Ricki Lewis. A. Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population. The allele for the peppered trait, being recessive, decreased in frequency. Current temperature changes will correlate with temperature changes during previous extinctions. Which of the following best explains the phenotypic pattern in the moths over time? The MC1RDMC1RD allele is not responsible for dark coat color in the Carrizozo population, so the dark coat color is likely a result of convergent evolution. WebAp Bio Unit 7 Progress Check Mcq Answers. Click the card to 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. One group is given food with an added substance that is known to be a mutagen. Can the voltage across a battery's terminals be higher than the battery's rated voltage? B. WebView AP Biology Unit 7 Evolution; MCQ Questions 1.pdf from BIOLOGY 101 at Oakland High School, Oakland. Geographic isolation will create separate gene pools, leading to speciation over time. A. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. C. The frequency of the bb allele will increase because there will be more heterozygous individuals. At this same instant, the disk is spinning at a constant rate 2=4rad/s\omega_2=4 \mathrm{rad} / \mathrm{s}2=4rad/s, measured relative to the rod. Which of the following best explains the divergence in morphology in the birds? 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. 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? In a particular region, a species of lizard lives in the lowlands. Geologic events such as mountain building can directly affect biodiversity. A dark coat color provides camouflage to mice on the lava flow rocks; therefore, mice with dark coats have a lower predation rate in that habitat. Implement function distribution() that takes as input the name of a file (as a string). The SinoHimalayan fern, Lepisorus clathratus is widely distributed on the QinghaiTibetan plateau. 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? Which statement below best states an alternative hypothesis Fox could have used to frame his research? Human activities can drive changes in ecosystems that affect the risk of extinction. By 1940, most genetic variation for speed had been lost from the gene pool. C. Most of the species found in the first static period will be absent in the second static period. A. Convergent evolution, because these organisms do not share a recent common ancestor. Which of the following student claims is best supported by the data provided? 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. (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 ? Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm. The M4 and M5 populations have the lowest genetic diversity of all populations. Find an equation of the tangent plane to the given surface at the specified point. The switch to increased transport by planes during the twentieth century reduced this gene flow. 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. 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. C. The frequency of the MC1RDMC1RD allele will decline due to natural selection. C. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. In an experiment, the scientist creates two groups of twenty highly inbred mice. 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. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis? Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population? Which statement below best states an alternative hypothesis Fox could have used to frame his research? protein template that matches proteins found on the primitive Earth added to a mixture of deoxyribonucleotides will produce double-stranded DNA molecules. Dr. Sidney Fox wished to add to the heterotroph hypothesis of the origin of life by synthesizing simple proteins from a mixture of amino acids. The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Which of the following best describes the processes occurring between the mouse populations and their environments? D. Migrating pollinators will start migrating later in the year, switching from spring-flowering plants to summer-flowering plants. Each of the fifteen genotypes shown in generation 1 and generation 2 represents 100 mice. (c) silicon relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? Based on the information provided in the figure, which of the following best describes how membrane-bound organelles provided unique evolutionary advantages to the last eukaryotic common ancestor? Iridium is an element that is rare on Earth but commonly found in meteorites. Relationships of selected organisms based on catalase structure. Take a look at the Intro to Unit 5 . 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. Which of the following best predicts why humans and mice have identical telomeric repeat sequences? The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. D. The frequency of both alleles will increase because the population will enter a period of rapid growth. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? Which of the following would be an appropriate alternative hypothesis? After rearing five additional generations of the mice on this new food, the two groups are assessed for how efficiently this new food is digested. Specimen 1 Specimen 2 Specimen 3 Specimen 4, . B. The telomeric repeat sequences for selected organisms are given in Table 1. A. Assuming that the population is in HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MNMN? A. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. The frequency of the B allele will increase because light-colored individuals will be more visible to predators. B. C. The animals in population A accumulated fewer genetic mutations, adapting to their microclimate. WebAP Biology Unit 7 Progress Check Which of the following best describes the processes occurring between the mouse populations and their environments? A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Increasing the number of trials and the number of mice in each treatment group. B. The frequency of the MC1RDMC1RD allele will decline due to natural selection. The telomeric repeat sequences for selected organisms are given in Table 1. The current global warming trend is placing new selective pressures on the species involved in these relationships. Figure 1. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. True Based on the data in Table 1, which of the following best describes the relationship between the MC1RMC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? D. Large population size. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. C. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. (Kentucky Derby). 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? Determine the amount T(C)\Delta T\left({ }^{\circ} \mathrm{C}\right)T(C) by which the two bars would need to be uniformly heated to bring the holes in the two bars into alignment. A thermometer requires 1 min to indicate 98% of the response to a step input. Which of the following best illustrates the change in the frequencies of the A and a alleles from generation 1 to generation 2 and to future generations, assuming Hardy-Weinberg equilibrium is present after generation 1 ? Owls (primary predators of rock pocket mice) are nocturnal visual predators that are able to distinguish effectively between dark and light colors in low-light conditions. Many of these species rely on pollinators that migrate based on changes in day length and the position of the Sun. The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. C. Dark color is selected for in mice from the West, Mid, and East Populations. If the environment for the plant species becomes too warm, the pollinators will no longer migrate to that area in the spring, continuing on to a more northern environment instead. WebAP Biology Unit 7 Evolution MCQ Questions 8.pdf - AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 8. 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.
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