(b) Explain why some roofs are "blown outward" during high winds. Over time, a new Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? protein template that matches proteins found on the primitive Earth added to a mixture of deoxyribonucleotides will produce double-stranded DNA molecules. B. Which of the following best describes what occurred during the periods indicated by the arrows? C. Most of the species found in the first static period will be absent in the second static period. A population of the species has the following allele frequencies: B=0.85 and b=0.15. At that time, the moths, normally white with black speckles, known as the peppered variety, became less common than the solid black variety. A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population. C. A pool of amino acids can spontaneously form into singlestranded RNA, which would then code for proteins. Iridium is an element that is rare on Earth but commonly found in meteorites. Which of the following best explains the phenotypic pattern in the moths over time? Observed modern extinction rates will resemble the rates found early in previous extinctions. The frequency of the BB allele will increase because light-colored individuals will be more visible to predators. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Take a look at the Intro to Unit 5 . 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. No new mutations Suppose that a 15m/s15-\mathrm{m} / \mathrm{s}15m/s wind is blowing across the roof of your house. In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. 2023 AP Bio Unit 7 Review | Free Reviews, Study Guides, & Notes After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. D. Start each population with bacteria that differ from one another by a single mutation to ensure that the initial genetic variation in all populations is known. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. 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? A. Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. Henslow's sparrow populations came to a peak in the mid1900s. AP Biology Unit 7 Evolution MCQ Questions 1.pdf - AP D. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA. (c) silicon D. The two populations will not show any differences because they originated from the same gene pool. A. Humans and mice have the same number of chromosomes. 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. Only males can inherit the color blindness condition. C. During the nineteenth century, increased ship commerce between Great Britain and Ireland facilitated the gene flow of the black variety, spreading it throughout the moth's normal range. A group of researchers claim that chance events play an important role in the evolution of populations. describes how the L. clathratus population would be affected? 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? B. Select the best alternate hypothesis to support this claim. Because the mice are highly inbred, they are essentially identical to one another. The species will undergo artificial selection, as the genes will adapt to warmer temperatures. Cattle are equally related to pigs and sheep, because the phylogeny places cattle between pigs and sheep. C. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. L_2=5 \mathrm{~m}, \quad \bar{\delta}=1 \mathrm{~mm} Webanswer choices. Mushrooms and potatoes are most closely related, since the node they share gave rise to all of the other organisms. A. A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. B. Specimen 2 which of the following best provides evidence to support this claim? The liver helps the circulatory system by _________. All of the selective breeding programs ended in 1940. Are the following statements true or false? 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? To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. Geologic events such as mountain building can directly affect biodiversity. D. Populations with low genetic diversity are more likely to contain individuals that can withstand different selective pressures. A. Migration of individuals between the Isabela and Butuan populations In an experiment, the scientist creates two groups of twenty highly inbred mice. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. B. 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. There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. B. AP Biology Unit 7 Evolution MCQ Questions 14.pdf - AP In the presence of available energy and the absence of a significant quantity of atmospheric O2 simple proteins will form spontaneously from a mixture of amino acids. Iridium is an element that is rare on Earth but commonly found in meteorites. Absence of selection C. If a sediment layer that is 3.6 billion years old is tested, it will contain organic material. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. 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? 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. D. Mice utilized the 5-TTAGGG-35-TTAGGG-3 telomeric repeat sequence first, but the sequence independently evolved in humans as well. Start each population with a different species of bacteria to determine whether the same environment has an effect on genetic differentiation. 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 student claims is best supported by the data provided? The mechanical properties and dimensions of the two bars are, E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm\begin{gathered} The degree of relatedness is inversely proportional to genetic diversity; that is, populations with a high degree of relatedness have less genetic diversity. AP Biology Unit 7 Evolution MCQ Questions 8.pdf - AP Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. 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. However, the distance between the rigid walls to which the two bars are attached was measured incorrectly, so that a misalignment of \bar{\delta} (exaggerated in Fig. The animals in population A were reproductively isolated from those in populations B, C, and D. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. Observed modern extinction rates will resemble the rates found early in previous extinctions. Which of the following best describes what occurred during the periods indicated by the arrows? (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 ? True natural 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. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? 19 Attempt 2: Communities & Ecosys, Teaching and Learning Across the Lifepsan. 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. Most of the species found in the first static period will be absent in the second static period. B. 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? The second group is fed the same food without the mutagen. (b)(b)(b) How much torque is required to stop it in 6.0s?6.0 \mathrm{~s} ?6.0s? Can the voltage across a battery's terminals be higher than the battery's rated voltage? The frequency of homozygous recessive individuals will increase because light-colored fur absorbs less heat. 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. Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. This molecule cannot exist. 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 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? 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. A researcher uses the protocol shown in Figure 1 to isolate a eukaryotic gene for the purpose of genetically engineering bacteria to synthesize the corresponding protein. 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. There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. Determine the velocity and acceleration of point PPP on the disk at this instant. 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 ? AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 1. These alleles code for glycoproteins that act as antigens on the red blood cells. In an experiment, the scientist creates two groups of twenty highly inbred mice. Based on the data in table 1, which of the following best provides evidence to support this claim?
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