Q: Question 2 Horse evolution is well documented in the fossil record. Describe three major trends in…
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Q: Question 26 Natural selection means that O populations change over many generations a few…
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Q: QUESTION 13 Feather color in a certain species of bird is controlled by a pair of alleles that…
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Q: Question 22 Gradualism describes evolutionary change as accelerating constant spotty intermittent…
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Q: QUESTION 49 Relatively high heritability estimates of warning behavior in a population of…
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Q: Darwin’s finches on the Galapagos Islands are a group of species of finches. One of the major…
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Q: QUESTION 31 The ability to taste PTC is a dominant, non-sex linked trait. Jack and Jill are both PTC…
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Q: QUESTION 5 In a population of 500 mice, 302 are homozygous dominant for black fur (BB), 100 are…
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Q: QUESTION 17 Micro- and Macro-evolution are not possible without DNA mutation and reproduction making…
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Q: Question 8. In a population of 235 individuals, it was observed that 200 were found to be (AA), 30…
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Q: QUESTION 58 The degree to which natural selection can operate depends on the degree to which a trait…
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Q: Question 18 Lamarck thought that species change through the inheritance of acquired characteristics…
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Q: QUESTION 31 All species use the same elements to make DNA. O True O False
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Q: When thinking about changes in allele frequencies over time, why do you care more about the…
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Q: Question 10 In a population of mountain lions, 9% of the individuals suffer from a disease caused…
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Q: QUESTION 21 The discovery of Australopithecus afarensis (Lucy) was anatomically important because of…
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Q: QUESTION 7 Sea blush (Plectritis congesta) always produces more anthocyanin at lower temperatures.…
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Q: Question 37 "Game theory" is best demonstrated by which of the following examples? The fitness of a…
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Q: Question 65 Two species of mountain lions live in a forest on either side of a large river. Which of…
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Q: QUESTION 18 Most of the human genetic diversity occurs: Within diverged genetic populations O…
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Q: Question 8. Assuming that the differences in moth density are due to toxicity differences, which of…
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Q: Which of the following is a benefit of sexual reproduction? A. Offspring are genetically…
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Q: Question 11 Oldfield deer mice live in the southeastern United States. The mice in populations that…
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Q: Question 23 Once a hypothesis has been shown to be true many times it becomes a experiment…
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Q: QUESTION 43 Which of the following statements is true about linkage disequilibrium? O a. D= -0.21…
A: Disequilibrium refers to imbalance, or spatial disorientation.
Q: Question 9 D The presence of tiny hairs, called setae, on the toe pads of some geckos is associated…
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Q: QUESTION 2 The theory of evolution states that: O Over time, all living things gradually evolve to…
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Q: QUESTION 35 You are conducting a QTL analysis to better understand monkey flower color and…
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Q: QUESTION 15 In 1859, Charles Darwin published On the Origin of Species, in which he: O presented the…
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Q: Question 20 You are studying a species of butterfly whose caterpillars produce different toxins…
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QUESTION 24
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Human immunodeficiency virus (HIV) is of interest to evolutionary biologists because all of the following, EXCEPT:
a. Phylogenetics allow us trace epidemics and transmission pathways.
b. Evolution of the virus has led to drug resistance and the need for multidrug treatments.
c. Population demography and disease transmission can differ between populations.
d. Resistant alleles are maintained in high frequency due to high selective pressure of the disease.
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- QUESTION 18 Describe: Population aging and increased longevity are creating more multi- and intergenerational families in the U.S. Give two examples of ways in which family structure and family roles are changing because of these changes.QUESTION 22 Tiktaalik and Archaeopteryx are very important transitional forms. They provide evidence for evolution through examples of: a. microevolution b. macroevolution c. migration d. speciationQUESTION 9 Recent genetic research indicates that ____ or more individuals are needed for an endangered species to maintain its capacity for biological evolution. a. 100 b. 1,000 c. 10 d. 100,000 e. 10,000
- Question 1.You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate the following: A) The frequency of the "aa" genotype. B) The frequency of the "a" allele. C) frequency of the a allele, then the frequency is 60%. D) The frequency of the "A" allele. E) frequency of A is by definition equal to p, so the answer is 40%. F) The frequencies of the genotypes "AA" and "Aa." G)The frequencies of the two possible phenotypes if "A" is completely dominant over "a."QUESTION 14 Darwin’s finches on the Galapagos Islands are a group of species of finches. One of the major features noted is the variation in beak depth. We spent some time talking about the variation in the ground finch population and how that changed overtime and how that change corresponded to changes in environmental conditions, which affected food item characteristics and abundance. The changes in beak depth over time is a result of… a. natural selection b. gene flow c. sexual selection d. artificial selectionQuestion 5 A rather large population of organisms have 396 red-sided individuals and 557 tan-sided individuals. Assume that red is totally recessive. Please calculate the following: a) The allele frequencies of each allele b) The expected genotype frequencies. c) The number of heterozygous individuals that you would predict to be in this population. d) The expected phenotype frequencies. e) Conditions happen to be really good this year for breeding and next year there are 1,245 offspring. Assuming that all of the Hardy-Weinberg conditions are met, how many of these would you expect to be red-sided and how many tan-sided?
- QUESTION 26 When thinking about changes in allele frequencies over time, why do you care more about the effective population size rather than the census (total number of individuals) population size?QUESTION 31 You are examining a population that has recently been subject to artificial selection for larger filet size (body size) through selective breeding in a commercial fishery. The artificial selection took quite a few generations, but the researchers were eventually successful. Which of the following statements is most likely true? a. There is likely no correlation between parent and offspring filet size (body size). b. The population experiencing artificial selection always has higher fitness than wild populations. c. The offspring of the selected population will, on average, be larger than the wild populations. d. The filet size (body size) of the fish is most likely controlled by a single gene.QUESTION 34 You are examining a nematode population in the compost behind your house. You notice that in the nematode population there are two alleles at a locus you think may play a role in movement. You find that individual nematodes either always turn right or always turn left, but never both directions in their lifetime. Interestingly, this behavior correlates with reduced heterozygosity at that locus in the population. What type of selection is likely acting on your locus of interest? a. Selection against recessive alleles b. Frequency-dependent selection c. Underdominance d. Overdominance
- QUESTION 11 You are examining a new population that has recently migrated to and colonized a new island. Which of the following characteristics would you expect to see in your population? a. The new population will likely experience genetic drift related issues related to the founder effect. b. The new population will suffer more the effects of mutation because this is a bottleneck event. c. The new population will have high levels of heterozygosity and allelic richness. d. The new population will most likely have the same allele frequencies as the original population.Question 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of the homozygous recessive condition, please calculate the following: A) The frequency of the recessive allele. B) The frequency of the dominant allele. C) The frequency of heterozygous individuals. Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals. Question 5 A rather large population of organisms have 396 red-sided individuals…QUESTION 46 Which of the following statements about speciation is correct? a. Natural selection chooses the reproductive barriers for populations b. It always takes millions of years for speciation to occur c. The goal of natural selection is speciation d. Speciation is a process in which members become reproductively isolated into their own group.