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ayo **** that girl who gave me the wrong answers Terms in this set (18)Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. Which statement below best states an alternative hypothesis Fox could have used to frame his research? 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. A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. Based on the data in Figure 1, which of the following would most affect the allelic frequencies of the populations on Isabela and Butuan? Immigration of individuals from Metro Manila into the two populations Which of the following best explains the trend shown in Figure 1? (Kentucky Derby) By 1940, most genetic variation for speed had been lost from the gene pool. 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. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. 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. Large population size In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. A population of the species has the following allele frequencies: B=0.85 and b=0.15. 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? The frequency of the B allele will increase because light-colored individuals will be more visible to predators. A group of researchers noticed that using a particular drug to treat cancer in mice would reduce the size of the tumor, but some of the tumor cells appeared to be resistant to the drug since some of these cells would increase in number over time. 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. Increasing the number of trials and the number of mice in each treatment group A population geneticist is conducting an investigation on a population of mice. 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 remaining members of the population are allowed to randomly mate with one another to produce generation 2 and future generations. A model of the investigation is shown in Figure 1. Each of the fifteen genotypes shown in generation 1 and generation 2 represents 100 mice. Future generations will eventually completely lose the a allele from the gene pool. There will not be any new individuals with the aa genotype. A scientist is studying the impact of mutagens on genetic variation in mice. In an experiment, the scientist creates two groups of twenty
highly inbred mice. Because the mice are highly inbred, they are essentially identical to one another. One group is given food with an added substance that is known to be a mutagen. The second group is fed the same food without the mutagen. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. 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. 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. Which of the following best explains the divergence in morphology in the birds? The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. A group of researchers claim that chance events play an important role in the evolution of populations. To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. 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. 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. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Select the best alternate hypothesis to support this claim. Observed modern extinction rates will resemble the rates found early in previous extinctions. A scientist maintains a large population of the fruit fly Drosophila affinis in the
laboratory. 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. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. 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. Human activities can drive changes in ecosystems that affect the risk of extinction. 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. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? Bacteria and eukaryotes use different mRNA codons for the same amino acids during translation. Which of the following best predicts why humans and mice have identical telomeric repeat sequences? Humans and mice share a recent common ancestor that had the 5′-TTAGGG-3′′ repeat sequence in its telomeres. 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 ? White Circle Gray Circle Black Circle Sets with similar termsEvolution HW Chapters 9,10,1160 terms cogus323 Evolution HW Chapters 9,10,1160 terms mmillar1 chapter 23,24,25,56,60 bsc2011111 terms Lash_Ruth Sets found in the same folderAp Bio: Unit 7 Progress Check: MCQ25 terms SophieBense12 AP BIO COLLEGE BOARD UNIT 722 terms zainaaabbb Unit 7 MCQ24 terms SugarSpiceSalt AP Biology AP Classroom Unit 7 FRQ10 terms Sivinity Verified questionsBIOLOGY What is the difference between foliated and nonfoliated metamorphic rock? Verified answer BIOLOGY Describe the economic impact of smoking-related COPD: Verified answer
BIOLOGY In the classification system of organisms, the level of ___ is between phylum and order. A kingdom B class C genus D species Verified answer
BIOLOGY What is possible evolutionary relationship between birds and dinosaurs? Verified answer Other Quizlet setsWeek 1 BEC 34120 terms logan_langston Child Development Chapter 526 terms exclamationdot vision28 terms Christine_Nguyen554 Exam 2 Cell Bio80 terms SuzyAfta Related questionsQUESTION Mendel's Law of Segregation is supported by a 1:1 ratio of offspring when one parent is heterozygous and the other is homozygous recessive. (T/F) 2 answers QUESTION
what is the amino acid attachment site of a tRNA? 13 answers QUESTION During DNA replication, the lagging strand is synthesized as a series of small fragments called --- fragments 6 answers QUESTION Both phenotypes are equally represented in the heterozygote: same letter, but subscripts identify alleles 2 answers Which of the following best predicts why the recombinant bacteria will fail to produce?Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? Bacteria and eukaryotes use different mRNA codons for the same amino acids during translation.
Which of the following best predicts why humans and mice have identical telomeric repeat sequences?Which of the following best predicts why humans and mice have identical telomeric repeat sequences? Humans and mice share a recent common ancestor that had the 5′-TTAGGG-3′ repeat sequence in its telomeres.
Which of the following best explains the advantage These projections provide the cell?Which of the following best explains the advantages of these projections provide the cell? The projections increase the surface area-to-volume ratio of the cell which allows for more efficient nutrient exchange with the environment.
What is a measure of evolutionary fitness?The central concept of natural selection is the evolutionary fitness of an organism. Fitness is measured by an organism's ability to survive and reproduce, which determines the size of its genetic contribution to the next generation.
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Which of the following best predicts the result of the bacteria failing to uptake the recombinant plasmid?
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