Homework Answers
QUESTION 34
Genetic drift is a process where the frequency of an allele is changed across the population thanks to the action of random mating. The allele frequency will depend of chances of survivor and reproduction by the members of the population. In some occasions, genetic drift can influence the disappearance of a determined gene, reducing the genetic variability.
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Q 34. What is Genetic Drift? (20 points) Q 35. Define Purifying (negative) selection. (20 points)
Define genetic drift and tell me how it is different from natural selection?
Define genetic drift and tell me how it is different from natural selection?
We expect natural selection and genetic drift to both result in the fixation of alleles, which...
We expect natural selection and genetic drift to both result in the fixation of alleles, which seems like it should reduce average heterozygocity in populations – there should be very little observed variation. However, we observe a tremendous amount of variation in populations. What can explain this observation?
Technical: Create a concept map with these terms: genetic drift, adaptation, mutation, gene flow, natural selection,...
Technical: Create a concept map with these terms: genetic drift, adaptation, mutation, gene flow, natural selection, inbreeding. Make a minimum of 5 connections Reflection: One paragraph: Think of an example that you have witnessed where an environment seemed out of balance in terms of # of autotrophs, or heterotrophs. If you cannot remember a situation where you noticed this, think about your neighborhood. Look outside, what do you see in terms of balance of trophic levels? Include the following in...
1.How did Darwin’s Beagle voyage lead to the concept of natural selection? What are some key...
1.How did Darwin’s Beagle voyage lead to the concept of natural selection? What are some key points? 2.What is gene flow? How is this important to recovering from genetic drift? Please type
What is the basic idea of natural selection? What is evolutionary adaption? Describe the five types...
What is the basic idea of natural selection? What is evolutionary adaption? Describe the five types of evidence of evolution. Click or tap here to enter text. Click or tap here to enter text. Click or tap here to enter text. Click or tap here to enter text. Click or tap here to enter text. What kinds of adaptations did Darwin observe in the Galápagos finches? What are the two observations that formed that basis of Darwin’s theory of natural...
1. Describe how the process of natural selection works, and how it results in adaptations (Darwin's...
1. Describe how the process of natural selection works, and how it results in adaptations (Darwin's Observations and Conclusions) • How does unequal reproductive success lead to natural selection? What are adaptations? Explain Darwin’s observations and conclusions. • Describe evolution by natural selection? What are some important points about evolution? 2. Describe examples of and evidence for evolution by natural selection that can be seen in your daily life. 3. Discuss the different kinds of evidence that support the theory...
FINANCE ECONOMICS 5. (8 points) Define Adverse Selection. Explain why adverse selection can be problematic in...
FINANCE ECONOMICS 5. (8 points) Define Adverse Selection. Explain why adverse selection can be problematic in the following insurance markets. (What does the insured know that the insurer doesn’t know?) Life Insurance Car Insurance Health Insurance
34 Suppose demand for a good is Qp 100-P and supply is Q -20+ P. What...
34 Suppose demand for a good is Qp 100-P and supply is Q -20+ P. What is the amount conumers pay producers? a. 60 b. 2400 c. 3600 d. 6400 35. Suppose goods X and Y are produced along a production possibilites frensier X0 + 4y- 500 ad y perfect substitutes such that U-X+Y. The slope of the production possibilities frontier is 250 What is the MRTS at the optimal point? a. C.
2. (8 pts) The top panel below shows the tracking over 20 generations of frequency of...
2. (8 pts) The top panel below shows the tracking over 20 generations of frequency of a particular allele in 20 populations of 9 individuals each; the lower panel is the same except for population sizes were held at 50 individuals. (a) How many populations reached fixation in the two panels? Define fixation in your answer. What explains the difference between the fixation rates between the two panels? (b) Does this illustrate gene flow, genetic drift, or natural selection (circle...
PRELAB 1. Use your textbook to define the following in your own words: a. Evolution: b....
PRELAB 1. Use your textbook to define the following in your own words: a. Evolution: b. Allele: c. Heterozygous: d. Homozygous: e. Dominant allele: f. Incomplete dominance: g. Natural Selection: h. Sexual Selection 2. What is genetic drift? How does it affect populations? Give an example of an event that would cause drift. 3. Read the section on Hardy-Weinberg in your textbook (ch. 23.2) then solve the following problem. Show your work! A snap dragon is a type of flower...
34 Suppose demand for a good is Qp 100-P and supply is Q -20+ P. What is the amount conumers pay producers? a. 60 b. 2400 c. 3600 d. 6400 35. Suppose goods X and Y are produced along a production possibilites frensier X0 + 4y- 500 ad y perfect substitutes such that U-X+Y. The slope of the production possibilities frontier is 250 What is the MRTS at the optimal point? a. C.
2. (8 pts) The top panel below shows the tracking over 20 generations of frequency of a particular allele in 20 populations of 9 individuals each; the lower panel is the same except for population sizes were held at 50 individuals. (a) How many populations reached fixation in the two panels? Define fixation in your answer. What explains the difference between the fixation rates between the two panels? (b) Does this illustrate gene flow, genetic drift, or natural selection (circle...
PRELAB 1. Use your textbook to define the following in your own words: a. Evolution: b. Allele: c. Heterozygous: d. Homozygous: e. Dominant allele: f. Incomplete dominance: g. Natural Selection: h. Sexual Selection 2. What is genetic drift? How does it affect populations? Give an example of an event that would cause drift. 3. Read the section on Hardy-Weinberg in your textbook (ch. 23.2) then solve the following problem. Show your work! A snap dragon is a type of flower...
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