Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. B. 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. A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. 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. Geographic isolation will create separate gene pools, leading to speciation over time. Which of the following best predicts why humans and mice have identical telomeric repeat sequences? A. 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? Humans and mice have the same number of genes. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? 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. A. Which statement below best states an alternative hypothesis Fox could have used to frame his research? Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. Ap Classroom Unit 7 Progress Check Mcq Answers Ap Bio 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. 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? 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. D. Grey Box, grey box and grey box. D. There is a progression of cellular organization in organisms found in Bacteria, Archaea, and Eukarya. ayo **** that girl who gave me the wrong answers. Quantitative Skills in the AP Sciences (2018) This reference guide is for students to use as they develop quantitative skills, such as using measurements, gathering and evaluating data, using quantitative evidence to support claims, and connecting empirical information to scientific theory, throughout the course. Curriculum Modules Download 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? 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. B. The results of breeding programs can be seen in the change in winning times of the Kentucky Derby from 1880 to the present, as shown in Figure 1. C. Cells with ribosomes were better able to produce proteins needed for a variety of metabolic functions. BIO 1- CH. Ap biology unit 1 test answers - anfk. A . Because the mice are highly inbred, they are essentially identical to one another. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. 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. 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? Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. Human activities can drive changes in ecosystems that affect the risk of extinction. WebProgress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and; 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. Mushrooms and potatoes are most closely related, since the node they share gave rise to all of the other organisms. which of the following best provides evidence to support this claim? A scientist is studying the impact of mutagens on genetic variation in mice. D. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. The distance the horses ran became shorter between 1880 and 1940. Even though there are numerous mountains in the region, the climate on the mountains is too cold for the lizards to survive. The geneticist determines the genotypes for a particular trait of all of the mice in the population during generation 1 and then removes all of the mice with the genotype aa. The frequency of the MC1RD allele will decline due to natural selection. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. Which of the following best predicts the effect of the enclosure on the O'Neill population? A population of the species has the following allele frequencies: B=0.85 and b=0.15. Which of the following is the most reasonable prediction about the results of the experiment? Cells with mitochondria were able to utilize metabolic energy more efficiently. An experiment is designed to help prevent the further decline and extinction of the Henslow's sparrow in which controlled burns will be set in the each of the ten Midwest counties in order to prevent the regrowth of the forest. The liver helps the circulatory system by _________. 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 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. E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm. These building blocks combined to form polymers, such as crude proteins. The heterotroph hypothesis of the origin of life states that basic organic building blocks formed from inorganic molecules under the primitive conditions present early in Earth's development. D. Increased population sizes over time in the Isabela population, but no change in the Butuan population, 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. 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. 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. Humans and mice share a recent common ancestor that had the 5-TTAGGG-3 repeat sequence in its telomeres. WebAP Biology Unit 7 MCQ B Term 1 / 18 Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? They found that although all 12 populations were exposed to the same environmental pressures, each population had differentiated from one another genetically after 10,000 generations. 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. 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. 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. The SinoHimalayan fern, Lepisorus clathratus is widely distributed on the QinghaiTibetan plateau. The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. For a specific bike plus rider of total mass 78kg78 \mathrm{~kg}78kg, FD14.0NF_{\mathrm{~D} 1} \approx 4.0 \mathrm{~N}FD14.0N; and for a speed of 2.2m/s,FD21.0N2.2 \mathrm{~m} / \mathrm{~s}, F_{\mathrm{~D} 2} \approx 1.0 \mathrm{~N}2.2m/s,FD21.0N. Find at what slope angle \theta the bike and rider can coast downhill at a constant speed of 8.0m/s8.0 \mathrm{~m} / \mathrm{~s}8.0m/s. Two flat steel bars are supposed to be connected together by a pin at BBB, and the system is supposed to be stress free after the pin is inserted (see Fig.given). A. C. Restriction enzymes in the cytoplasm of the bacteria degrade linear DNA. D. Most of the species found in the second static period will resemble each other more than the species found in the first static period. Population numbers will continue to decline even in the controlled fire sites because human activities always lead to extinction. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. D. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA. White circle, grey circle and black circle. A. General Instructions for your group. Make .sure .you .begin .the .exam .at .the .designated .time . . If you are giving the regularly scheduled exam, say: It is Monday morning, May 13, and you will be taking the AP Biology Exam. If you are giving the alternate exam for late testing, say: Select the best alternate hypothesis to support this claim. WebAp Bio: Unit 7 Progress Check: MCQ describes how the L. clathratus population would be affected? After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. C. If a sediment layer that is 3.6 billion years old is tested, it will contain organic material. Henslow's sparrow is a songbird found in North American grasslands. C. A pool of amino acids can spontaneously form into singlestranded RNA, which would then code for proteins. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. 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. C. The frequency of the bb allele will increase because there will be more heterozygous individuals. C. Start each population with bacterial cells that have different genotypes to make sure there is enough genetic variation for selection to occur. Which statement below best states an alternative hypothesis Fox could have used to frame his research? 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 shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat.