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- 1. The image shows a model of a reproductive strategy of an 2. The bird in the picture feeds on mice. A major forest fire resulted in a layer of ash that darkened the soil on which the mice lived. The illustration shows the distribution of mice over time. organism. What type of reproduetive strategy is shown in the model Make a claim about why the color distribution in the mouse population changed over time. Provide evidence to support and what is an evolutionary disadvantage of it? your claim. 1 2 3 Number of Weeks after the Forest Fire1.A small group of turtles float on a log to an island and establish a new population there. How do you expect the genetic diversity of the island turtles to compare to genetic diversity of the mainland turtle population they originated from? Group of answer choices A. Genetic diversity should be similar, since they are the same species. B. Genetic diversity should be higher for the island turtles, because the new environment will produce new alleles. C. Genetic diversity should be lower for the island turtles, since the island turtles represent a small sample of the genetic diversity from the mainland turtles. 2.If the probability of a turtle having a brown shell is 3/4 and the probability of a turtle having a bumpy shell is 1/4, what is the probability of a turtle that has a shell that is both brown andbumpy? Group of answer choices A. 3/16 B. 3/8 C. 3/4 D. 1/2 3. A Drosophila gene is on the X chromosome, and recessive mutations in this gene cause white eye color…22. The graph shows the distribution of a trait in an animal population. mean Range of variable If the species were to undergo stabilizing selection in which extreme phenotypes were selected against, how would the graph be expected to change? A. The peak would move to the left. B. The peak would move to the right. C. The peak would become taller and narrower. D. The peak would become lower and more rounded. EducationTM Inc. Aouenber
- 1 Refer to the following to answer the two questions that follow: A population begins with 100 individuals who have the genotype Aa. After 10 generations of breeding, there are 20 AA, 40 Aa, and 40 aa. 24. How many A and a alleles are present after 10 generations? Use the method you used in the allele frequency simulation. a. 80 A; 80 a b. 60 A; 120 a ✓ c. 40 A; 80 a d. 80 A; 120 a e. 120 A; 80 a leles after 10 generations? Use the method you used in the12. An allele occurs at a frequency of 0.19 in a population. Assuming it is neutral to selection, what is it's probability of going to fixation at some time in the future? A) 0.04. In monkeys, black coat color (B) is dominant over brown color (b). A population of monkeys was found to be composed of 67 brown coated individuals and 119 black coated individuals. a. What is the frequency of the b allele in this population? b. What is the frequency of the B allele in this population? c. Based upon the Hardy-Weinberg formula, what proportion of the population is expected to have the genotype BB? d. Based upon the Hardy-Weinberg formula, what proportion of the population is expected to bave black coat color? e. Based upon the Hardy-Weinberg formula, how many individuals in this population would be expected to have the genotype Bb?2) The Hardy-Weinberg principle tells us what to expect when a sexually reproducing population is a.not evolving b.increasing in size c.changing in size d.evolving e.not evolving under natural selection specifically7. In a study of a Native tribe in North America, researchers found 26 albino individuals in a population of 6000. The type of albinism found is controlled by a single gene with just two alleles, and albinism is recessive to normal skin coloration. a. Assuming Hardy-Weinberg Equilibrium, what is the frequency of the allele for albinism in this population? b. What is the frequency of carriers of the albinism allele (i.e., heterozygous) in this population, again assuming Hardy-Weinberg Equilibrium?1. The phenotype and genotype of a population is due to a "mosaic" of random and directed processes whereby some have to do with history and others related to adaption and other factors. Why is this so?1. What is the expected time to fixation in generations for a new mutation in a diploid population (like humans) with an effective population size of 50? This new mutation is neutral and has no impact on fitness (e.g. synonymous polymorphism). Assuming the mutation isn’t lost immediately, will it reach fixation faster in a population of Ne=500 or Ne=5,000 and why?1.True or false: If the Hardy-Weinberg equation predicted a homozygous recessive genotype frequency of 0.16, and you found that 16% of the individuals in the next generation had the recessive phenotype for the trait in question, this would mean the trait is evolving. 2.True or false: It is theoretically possible for a population to NOT evolve for some amount of time 3.true of false.In the "energy expansion" hypothesis that explains the sequence of major events in the history of life, different forms of energy, each containing more available energy then the previous, become available to life over time. 4.True or false: A mutation that effects the phenotype of an organism can be either adaptive or harmful depending on the selective environment 5.True or false: In sexually reproducing organisms theory predicts that speciation will occur when reproductive isolation is achieved. For this to occur, a population must be physically separated into two or more isolated locations.…1. Explain how a phenotype can increase, decrease, or have no effect on an organisms fitness. 2. Explain what would happen if a particular hair color suddenly gave an advantage under existing environmental conditions. 3. What components in an environment may be different on either side of the barrier? 4. What does the term "reproductive isolation" refer to? 5. Can you hypothesize how three organisms can have similar structures, yet they serve different functions? 6. It would seem that wisdom teeth no longer serve a purpose. Can you propose what purpose they served earlier in our evolution? 7. Explain why the pharyngeal slit becomes the Eustachian tube in humans and a gill in fish.SEE MORE QUESTIONS