Q: Which of the following are NOT processes that can change allelic frequencies? Group of answer…
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Q: What is the Evidence That Populations Evolve by Natural Selection?
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Q: Can evolution occur without allele frequency changes?If not, why not? If so, how?
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Q: A population carries two alleles at a locus. One allele has a very small fitness advantage. What is…
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Q: How can natural selection maintain harmful alleles in a population?
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Q: Which mechanisms of evolution cause random changes in allelefrequencies? Which cause nonrandom…
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Q: What two things do you suppose govern the rate of evolution by natural selection?
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Q: Under what scenaries is genetic drift most potent as an evolutionary process? how do factors like…
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Q: the meaning of fitness ?what two things do you suppose govern the rate of evolution by natural…
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Q: One possible definition of evolution is that evolution can be seen as the change of allele…
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Q: "Natural Selection Is a Major Force Driving Allele Frequency Change". Explain how ?
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Q: Which of the following best explains the phrase “survival of the fittest” in terms of evolution by…
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A: Genetic Drift is a Correct Answer :
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Q: What causes allele frequencies to differ between biological populations?
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Q: What Causes Allele Frequencies to Change in Real Populations?
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Q: Is it easier for selection to remove a deleterious recessive allele from a randomly mating…
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Q: If both the forces of mutation and natural selection are acting on this population from generation…
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Q: What type of selection does this graph show
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Q: fitness
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Q: Why is mutation important to evolution if it is the microevolutionary force that generally has the…
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Q: What do you think would be the genetic and evolutionary consequences to the population if it was not…
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Q: Which of the following terms are used to apply ONLY TO SELECTION, and never to just evolution.…
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Q: Can someone please explain the distinction of natural selection and evolution of populations?
A: Mutations are the random changes in the nucleotide sequences of the DNA. These mutations create…
Q: Which of the following is the best definition of evolution? Group of answer choices a. allele…
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Q: In a population, with time the frequency of some alleles/genotypes decreases" describes... Group of…
A: Evolution is defined as the change in characteristics of an organism over a period of time.
- Why is it appropriate to define evolution as the change in allele frequencies of a population over time?
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- According to the Hardy-Weinberg Equilibrium Equation, all of the following slow down or stop evolution EXCEPT (choose as many as apply): Group of answer choices very small population very large population no one leaves or comes into the population everyone has equal numbers of offspring there are no mutations there are lots of mutations there is non- random matingWhich of the following factors are required in order for evolution to occur? a. Individuals within a population must be receptive to change and collectively determine which trait(s) is/are to be modified in subsequent generations b. Genetic variation within a population must exist or have the potential to arise, and shifts in allelic frequencies will take place or have the potential to take place c. Individuals within a population should be able to reproduce effectively (i.e., without barriers to reproduction existing) d. Both A & B e. Both B & COne possible definition of evolution is that evolution can be seen as the change of allele frequencies with time. 1)True 2) False
- Evolution is a change in frequencies of alleles in the gene pool of a population. This definition of evolution was developed a result of the work in the 20th century by Hardy and Weinberg. Through mathematical modeling based on probability, they concluded that allele and genotype frequencies in a population will remain constant from generation to generation absence of evolutionary influences. Evolution will not occur in a population if seven conditions are met: 1. mutation is not occurring 2. natural selection is not occurring 3. the population is infinitely large 4. all members of the population breed 5. mating is totally random 6. everyone produces the same number of offspring 7. there is migration in or out of the population One of the criteria in the prompt above has been mis-typed. Correct the erroneous phrase so evolution will NOT occur.A) (5) There is sexual selection.B) (1) Mutation occurs within the population.C) (4) The fittest members of the population breed.D) (7)…NASA is planning on sending a colony of Snow Monkeys to mars to determine how evolution will progress outside of our planet. They have calculated the following for 226 individuals: Observed Genotype Frequencies (not in HWE) AA: 0.392 Aa: 0.445 aa: 0,163 If this population was in Hardy Weinberg Equilibrium, what would be the expected number of individuals for the homozygous recessive? Retain 1 decimal place.What is the Evidence That Populations Evolve by Natural Selection?
- Evolution takes place through a combination of mechanisms at the level of populations. This process consists of a change in allele frequencies in a population over time. Consider the following scenario: You are observing a population of wild mice that has a dominant allele which produces white-colored fur, while the homozygous recessive alleles result in dark brown fur. Genetic studies have indicated that this gene for fur color follows Mendelian inheritance. Originally, the mice population was comprised of over 80% of white mice in a dark forest environment. As the local fox population increased, you noticed that there were fewer white mice and more brown-colored mice. By the end of your observation period of six months, you notice that brown-colored mice now make up over 60% of the total mice population. Based on this scenario, explain what force of evolution is at workEvolution takes place through a combination of mechanisms at the level of populations. This process consists of a change in allele frequencies in a population over time. Consider the following scenario: You are observing a population of wild mice that has a dominant allele which produces white-colored fur, while the homozygous recessive alleles result in dark brown fur. Genetic studies have indicated that this gene for fur color follows Mendelian inheritance. Originally, the mice population was comprised of over 80% of white mice in a dark forest environment. As the local fox population increased, you noticed that there were fewer white mice and more brown-colored mice. By the end of your observation period of six months, you notice that brown-colored mice now make up over 60% of the total mice population. 1. Based on this scenario, explain what force of evolution is at work. 2. Are you observing microevolution or macroevolution? Explain your answer.A recessive lethal allele has achieved a frequency of 0.22 due to genetic drift in a very small population. Based on natural selection, how would you expect the allele frequencies to change in the next three generations? (Note: Your calculation can assume that genetic drift is not altering allele frequencies in either direction.)
- A hypothetical population has two alleles for an "T" gene: T and t. In a random sample of 50 diploid zygotes (for a total of alleles), the following genotypes were found: 15 TT, 25 Tt, and 10 tt. Let's say that natural selection acts against the t allele in the initial population sampled above, and all 10 individuals with tt genotype die off (leaving 0 tt individuals) and 10 of the individuals with Tt genotype die off (leaving 15 Tt individuals) before reaching maturity. (The number of surviving adults in the population is 30). What is the new frequency of the recessive allele after selection occurred? O A. 0.25 O B. 0.75 O C.0.10 O D.0.50According to the Hardy-Weinberg law of equilibrium: Question 1 options: A) In absence of mutation and natural selection, the frequencies of the genotypes will remain stable because no evolutionary change takes place. B) In absence of gene flow, the frequencies of the genotypes will remain stable because no evolutionary change takes place. C) In absence of genetic drift, the frequencies of the genotypes will remain stable because no evolutionary change takes place. D) All of the above. E) None of the above.Why is mutation important to evolution if it is the microevolutionary force that generally has the smallest effect on allele frequencies?
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