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. Humans and mice have the same number of chromosomes. The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Figure 1. A. A scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNARNA molecule. The logging industry created vast meadow habitats for the sparrow in the late 1800s. 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. Figure 1 describes a possible scenario, known as the RNA World Hypothesis, that could have led to the evolution of our modern-day genetic material. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? Observed modern extinction rates will resemble the rates found early in previous extinctions. HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MN? 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? E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm. The degrees of relatedness in several native populations of prairie chickens in Marion and Jasper Counties in Illinois were determined. Over time, populations A and B developed into two distinct species. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. 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. E_1=E_2=200 \mathrm{GPa}, \quad \alpha_1=\alpha_2=12 \times 10^{-6} /{ }^{\circ} \mathrm{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. WebProgress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and; The frequency of the MC1RDMC1RD allele will decline due to natural selection. B. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNARNA. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? Iridium is an element that is rare on Earth but commonly found in meteorites. D. By 1940, most genetic variation for speed had been lost from the gene pool. By the end of the twentieth century, the peppered version of the moth was again more common than the black version. Take a look at the Intro to Unit 7. D. The original habitat was tropical, which increased the rate of mutation and led to rapid diversification. D. The M4 and M5 populations have the lowest genetic diversity of all populations. 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. D. The frequency of both alleles will increase because the population will enter a period of rapid growth. 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. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Observed modern extinction rates will resemble the rates found early in previous extinctions. 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. 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. C. Cells with ribosomes were better able to produce proteins needed for a variety of metabolic functions. 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. A. The two populations will show significant genetic differences because there will be much higher rates of mutation in the smaller population. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. Are the following statements true or false? Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? 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. D. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA. AP Biology Unit 7 MCQ B Flashcards | Quizlet Add an additional treatment group to the experiment to measure the effectiveness of another insecticide (Insecticide #3) over several generations. Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population? 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. 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? Immigration of individuals from Metro Manila into the two populations. The presence of MC1Rd alleles in the East lava flow population is an indication of gene flow from mice populations living on light granite rocks. 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. Some plant species flower in response to increasing daily temperatures in the spring. A scientist is studying the impact of mutagens on genetic variation in mice. 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. Figure 1 shows the phylogeny of the birds. AP Bio 4.8 Multiple Choice Questions | Fiveable B. The population was predominantly black throughout the nineteenth century. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA . Population B was separated for a longer time from the original population than population A was, and population B evolved into a more distinct new species than population A did. Dark coat color provides camouflage to mice on the flow; therefore, mice with dark coats predation rate in that habitat. B. Convergent evolution, because these organisms do not share a recent common ancestor. D. The black variety was a nineteenth century mutation, dominant to the peppered variety. Dark color is selected for in mice from the West, Mid, and East populations. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. The frequency of the BB allele will increase because light-colored individuals will be more visible to predators. D. Mice utilized the 5-TTAGGG-35-TTAGGG-3 telomeric repeat sequence first, but the sequence independently evolved in humans as well. B Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? B. Which of the following best explains the phenotypic pattern in the moths over time? The switch to increased transport by planes during the twentieth century reduced this gene flow. Absence of selection The following questions were not written by College Board and although they cover information outlined in the AP Biology Course and Exam Description the formatting Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. C. Random mating within each population 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? 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 group of researchers claim that chance events play an important role in the evolution of populations. Even though there are numerous mountains in the region, the climate on the mountains is too cold for the lizards to survive. A population of the species has the following allele frequencies: B=0.85 and b=0.15.
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