1. Why is Hardy-Weinberg Theorum important? How can we test whether a population is in H-W...
1. Why is Hardy-Weinberg Theorum important? How can we test whether a population is in H-W Equilibrium? What does it mean to be in Equilibrium?
2. What are the three modes of selection? How is each related to fitness? How are the mean trait values and variance of the population affected under each? Which one could be linked with speciation?
3. How does the density of the trait values in a population sometimes matter for the direction of Selection?
Homework Answers
1. Hardy -Weinberg theorm is important because :
it enables us to compare a population
it describe the genetic product of a population in which all individuals are equally likely to survive and to produce surviving offspring.
it calculate the genotype frequencies that will be observed in a population that is not evolving.
Add Answer to:
1. Why is Hardy-Weinberg Theorum important? How can we
test whether a population is in H-W...
B. The components of the Hardy-Weinberg equation and population equilibrium What is the H-W equation and...
B. The components of the Hardy-Weinberg equation and population equilibrium What is the H-W equation and what does it represent? What are the Components of the equation? How does H-W equilibrium (HWE) relate to evolutionary prediction? What are the evolutionary components that can’t be occurring for a population to remain in HWE
In a population of wild sweet pea plants that you assume are in Hardy-Weinberg equilibrium, 1%...
In a population of wild sweet pea plants that you assume are in Hardy-Weinberg equilibrium, 1% of plants express a recessive white flower color. A) What is the expected frequency of heterozygotes in the population? Number You have noticed a shift in pollinator frequency and you want to test whether this has resulted in selection on flower color. You sample 1000 plants and genotype them at this locus. B) How many of each genotype do you expect based on the...
Which of the following statements regarding the Hardy-Weinberg Equation is TRUE? Answers: It can only be u...
Which of the following statements regarding the Hardy-Weinberg Equation is TRUE? Answers: It can only be used when allele and genotype frequencies remain constant across generations in a population It can only be used when allele and genotype frequencies change across generations in a population It has no assumptions It mathematically shows how recessive alleles in a population decrease over time It reveals when allele frequencies change over time in a population Assuming Hardy-Weinberg Equilibrium, what percentage of individuals in...
Question 57 is given below 23 You continue your studies of snails. The woodland population from question 57 were moved...
Question 57 is given below
23 You continue your studies of snails. The woodland population from question 57 were moved to a grassland habitat. You release 100 snails of each phenotype in an enclosed study area and measure survival after two weeks of bird predation #ofjuveniles at start on study (from Q57) 195 58. Phenotype survival after bird predation (%) 10 solid brown brown & green stripes solid green a) Es 60 409 50 198 timate the fitness of each...
Find the calculations for the data of this population? a) Calculate the relative fitness for each...
Find the calculations for the data of this
population?
a) Calculate the relative fitness for each of the
three genotypes?
b) What is the mean fitness of this population, and
how do you expect it to change in response to selection?
c) Based on the calculations in a), calculate the
values of h and s. What type of selection has occured?
d) If the surviving individuals mate at random, what
will be the genotype frequencies in the next generation (...
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive)....
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive). There are 126 A1A1, 167 A1A2 and 88 A2A2. Is this population in Hardy-Weinberg equilibrium (3 pts)? In a population of Gragons, there are 3151 A1A1, 1678 A1A2 and 2014 A2A2 individuals. If the environment changes so that the homozygous recessive genotype suffers a reduction of fitness where its fitness is now 0.73, but the other genotypes are unaffected, what will be the frequency...
I posted this question before but no answer I need to submit in 4 hours, please...
I posted this question before but no answer I need to submit in
4 hours, please help.
Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain...
BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain what natural selection is. What is required? What is the result? 2. True or false? For natural selection to work, a population must have genetic variation. Explain your answer. 3. List three sources of genetic variation in a population. Identify which sources are most important for asexually reproducing organisms. Which method is most important for sexually reproducing organisms? 4. List three mechanisms which cause...
On the island of Notion, in the Factotum Archipelago, there lives a population of pencil bears....
On the island of Notion, in the Factotum Archipelago, there lives a population of pencil bears. A portion of these bears have silky fur, and as a result, are much better surfers. The texture of the fur is determined by a single autosomal locus with two alleles: S (trait allele) and s (wild type allele). In a recent study, researched collected the values in the following table: Table 1. Counts of Pencil Bear fur style by genotype Phenotype Genotype Silky...
In a population of wild sweet pea plants that you assume are in Hardy-Weinberg equilibrium, 1% of plants express a recessive white flower color. A) What is the expected frequency of heterozygotes in the population? Number You have noticed a shift in pollinator frequency and you want to test whether this has resulted in selection on flower color. You sample 1000 plants and genotype them at this locus. B) How many of each genotype do you expect based on the...
Question 57 is given below
23 You continue your studies of snails. The woodland population from question 57 were moved to a grassland habitat. You release 100 snails of each phenotype in an enclosed study area and measure survival after two weeks of bird predation #ofjuveniles at start on study (from Q57) 195 58. Phenotype survival after bird predation (%) 10 solid brown brown & green stripes solid green a) Es 60 409 50 198 timate the fitness of each...
Find the calculations for the data of this
population?
a) Calculate the relative fitness for each of the
three genotypes?
b) What is the mean fitness of this population, and
how do you expect it to change in response to selection?
c) Based on the calculations in a), calculate the
values of h and s. What type of selection has occured?
d) If the surviving individuals mate at random, what
will be the genotype frequencies in the next generation (...
I posted this question before but no answer I need to submit in
4 hours, please help.
Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain what natural selection is. What is required? What is the result? 2. True or false? For natural selection to work, a population must have genetic variation. Explain your answer. 3. List three sources of genetic variation in a population. Identify which sources are most important for asexually reproducing organisms. Which method is most important for sexually reproducing organisms? 4. List three mechanisms which cause...
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