Homework Answers
Answer : A
The allele frequency is determined by : the proportin of a genotype (ie, AB) in a population.
Description:
Allele frequency is the ratio of frequency of allele observed in a population by the total copies of alleles at that particular genetic location inside the population. Hence the Answer is A.
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QUESTION 3 What is an allele frequency determined by? The proportion of a genotype (i.e., AB)...
Case B: In this population, the frequency of the dominant allele, B, is 0.5 and the...
Case B: In this population, the frequency of the dominant allele, B, is 0.5 and the frequency of the recessive allele, b, is 0.5. However, in this situation any individual who is born with the dominant trait has a 50 % chance of not surviving to reproductive age. Assuming that mating is still random, what will happen to the allele frequencies (p and q) after 5 generations? (le. Will one allele increase or decrease?) Prediction (1 mark): Reason (2 marks):...
Genotype Total #of #of Individuals Genotype Allele Allele Individuals in Parent Frequency Population # of Alleles...
Genotype Total #of #of Individuals Genotype Allele Allele Individuals in Parent Frequency Population # of Alleles Total # of Alleles in Allele Parent Frequency Populations 90 XD Dr 48 D = dominant allele r=recessive allele Solve for X (complete the necessary calculation to fill in the spot on the table with the X). Round to 2 decimals.
3. A trait determined by an X-linked dominant allele shows 100 percent penetrance and is expressed...
3. A trait determined by an X-linked dominant allele shows 100 percent penetrance and is expressed in 9 percent of the females in a population. Assuming that the population Is in Hardy-Weinberg equilibrium, what proportion of the males in this population express the trait? Show your work. (4 pts) *4. Individuals with the genotype ee are 22 percent less fit than individuals with the genotypes EE or Ee. If E is present in this population at a frequency of 0.65,...
QUESTION 9 Given the following genotype frequencies what is the overall frequency of the D allele...
QUESTION 9 Given the following genotype frequencies what is the overall frequency of the D allele in this population? Genotype Genotype Frequency 0.81 DD Dd 0.18 dd 0,01 QUESTION 10 The distribution of genotypes in the following random mating population corresponds to the expectations of the Hardy-Weinberg principle Genotype Genotype Frequency 0.81 DD Dd 0.18 dd 0.01 True False
Please help with the question: Is the frequency of a homozygous dominant genotype equal to the...
Please help with the question: Is the frequency of a
homozygous dominant genotype equal to the proportion of individuals
that show the dominant trait.
3) Is the frequency of a homozygous dominant genotype equal to the proportion of individuals that show the dominant trait? Explain your answer. population is q=0.8 1> In a given population of grizzly bears, 29 of a total of 145 animals exhibit a light fur colour which is controlled by a recessive allele. Four generations later,...
A is the normal allele at the Beta-globin locus, but in a malarial region of western...
A is the normal allele at the Beta-globin locus, but in a malarial region of western Africa, the S allele of this locus is present at a frequency of 0.2. SS individuals have sickel-cell anemia and have only a 10% chance of surviving to reproductive age relative to heterozygous individuals with the AS genotype. Normal individuals with the AA genotype at this locus have an 85% chance of surviving to reproductive age, relative to AS individuals. Assume that at this...
p is the frequency of a new mutation: -i.e. In a population containing only allele A2,...
p is the frequency of a new mutation: -i.e. In a population containing only allele A2, an allele mutates into allele A1 Question: A single mutant allele A2 would start at p=0.1 in a population with ____ (how many) individuals? A.) 10 B.) 5 C.) 20
4. The Hardy-Weinberg Principle. For a single locus, if the frequency of one allele (allele A)...
4. The Hardy-Weinberg Principle. For a single locus, if the frequency of one allele (allele A) is 0.4, the frequency of the other allele (allele B) is 0.6, what are the expected frequencies of the AA genotype, the AB genotype and the BB genotype in the next generation? What are the eight assumptions that should be met when making the genotype frequency predictions? How do the eight assumptions serve to form a null model for evolution? Finally, how does one...
1 B allele frequency = Question 7 1.5 pts The total number of individuals in the...
1 B allele frequency = Question 7 1.5 pts The total number of individuals in the population is 1000 shmoos. Using one of the equations below, fill in table below with the observed genotype frequencies and number of individuals with those genotypes. Allele b frequency = 0.3. Equations: p2 + 2pq+q2 = 1 200+ p +q = 1 bb 1 BB Observed Genotype Frequencies Observed Individuals / / N / / Question 8 2 pts
The occurrence of the NN blood group genotype in the US population is 1 in 400,...
The occurrence of the NN blood group genotype in the US population is 1 in 400, consider NN as the homozygous recessive genotype in this population. You sample 1,000 individuals from a large population for the MN blood group, which can easily be measured since co-dominance is involved (i.e., you can detect the heterozygotes). They are typed accordingly: BLOOD TYPE GENOTYPE NUMBER OF INDIVIDUALS RESULTING FREQUENCY M MM 490 0.49 MN MN 420 0.42 N NN 90 0.09 Using the...
Case B: In this population, the frequency of the dominant allele, B, is 0.5 and the frequency of the recessive allele, b, is 0.5. However, in this situation any individual who is born with the dominant trait has a 50 % chance of not surviving to reproductive age. Assuming that mating is still random, what will happen to the allele frequencies (p and q) after 5 generations? (le. Will one allele increase or decrease?) Prediction (1 mark): Reason (2 marks):...
Genotype Total #of #of Individuals Genotype Allele Allele Individuals in Parent Frequency Population # of Alleles Total # of Alleles in Allele Parent Frequency Populations 90 XD Dr 48 D = dominant allele r=recessive allele Solve for X (complete the necessary calculation to fill in the spot on the table with the X). Round to 2 decimals.
3. A trait determined by an X-linked dominant allele shows 100 percent penetrance and is expressed in 9 percent of the females in a population. Assuming that the population Is in Hardy-Weinberg equilibrium, what proportion of the males in this population express the trait? Show your work. (4 pts) *4. Individuals with the genotype ee are 22 percent less fit than individuals with the genotypes EE or Ee. If E is present in this population at a frequency of 0.65,...
QUESTION 9 Given the following genotype frequencies what is the overall frequency of the D allele in this population? Genotype Genotype Frequency 0.81 DD Dd 0.18 dd 0,01 QUESTION 10 The distribution of genotypes in the following random mating population corresponds to the expectations of the Hardy-Weinberg principle Genotype Genotype Frequency 0.81 DD Dd 0.18 dd 0.01 True False
Please help with the question: Is the frequency of a
homozygous dominant genotype equal to the proportion of individuals
that show the dominant trait.
3) Is the frequency of a homozygous dominant genotype equal to the proportion of individuals that show the dominant trait? Explain your answer. population is q=0.8 1> In a given population of grizzly bears, 29 of a total of 145 animals exhibit a light fur colour which is controlled by a recessive allele. Four generations later,...
4. The Hardy-Weinberg Principle. For a single locus, if the frequency of one allele (allele A) is 0.4, the frequency of the other allele (allele B) is 0.6, what are the expected frequencies of the AA genotype, the AB genotype and the BB genotype in the next generation? What are the eight assumptions that should be met when making the genotype frequency predictions? How do the eight assumptions serve to form a null model for evolution? Finally, how does one...
1 B allele frequency = Question 7 1.5 pts The total number of individuals in the population is 1000 shmoos. Using one of the equations below, fill in table below with the observed genotype frequencies and number of individuals with those genotypes. Allele b frequency = 0.3. Equations: p2 + 2pq+q2 = 1 200+ p +q = 1 bb 1 BB Observed Genotype Frequencies Observed Individuals / / N / / Question 8 2 pts
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