If the initial allele frequencies are p = 0.9 and q = 0.1 and the a...
If the initial allele frequencies are p = 0.9 and q = 0.1 and
the a allele is a lethal recessive, what will be the
frequency of the a allele in the future?
Use the following equation: qn = q0/(1 +
nq0), where qn = the new gene frequency,
q0 = the initial gene frequency, and n = the number of
generations.
1. What will be the frequency of the a allele after 5 generations?
Round your answer to four decimal places.
2.
What will be the frequency of the a allele after 25 generations?
Round your answer to four decimal places.
3. What will be the frequency of the a allele after 100 generations?
Round your answer to four decimal places.
Homework Answers
1. After 5 generations according to given formula, qn=q0/(1+nq0) = 0.1/(1+0.5) = 0.0667
2. After 25 generations according to given formula, qn=q0/(1+nq0) = 0.1/(1+2.5) = 0.0286
3. After 100 generations according to given formula, qn=q0/(1+nq0) = 0.1/(1+10) = 0.0091
Add Answer to:
If the initial allele frequencies are p = 0.9 and q = 0.1 and
the a...
Can you please help me with this problem: 6. If the initial allele frequencies are A...
Can you please help me with this problem:
6. If the initial allele frequencies are A = 0.3 and a = 0.7, and allele a is a lethal recessive, what will the allele frequencies be after 1 generation of random mating? (4 pts) |
In gerbils there is a recessive mutant gene that causes a lethal condition. For the purpose...
In gerbils there is a recessive mutant gene that causes a lethal condition. For the purpose of this problem let the symbol A denote the normal allele and a the mutant. In heterozygote individuals who carry both versions of the allele (Aa), this causes a white spotting color pattern. Homozygotes for the mutant (aa) die as embryos and are never seen in live gerbils. Since the mutant allele is lethal in the homozygous form, natural selection will occur against the...
Consider two populations, I and II, with initial frequencies of q0=0.8 and q0=0.2, respectively. What are...
Consider two populations, I and II, with initial frequencies of q0=0.8 and q0=0.2, respectively. What are the change in gene frequency after one generation and its ultimate value in population I if migration occurs from population II to I at the rate of 3% every generation? How many generations of continuous migration it will take to halve the gene frequency of population I?
2. Which of the following correctly describes how inbreeding will affect genotype and allele frequencies in...
2. Which of the following correctly describes how inbreeding will affect genotype and allele frequencies in Hardy-Weinberg populations? Genotype and allele frequencies will be unaffected. The frequency of heterozygotes will decrease, but allele frequencies will be unaffected. The frequency of homozygotes will increase, and deleterious alleles will decrease. Beneficial alleles will increase in frequency, as well as the genotypes containing those alleles. Genotype frequencies will return to H-W expectations after 1 generation of random mating. 3. Consider a population with...
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):...
calculate phenotype frequencies, allele frequencies, genotyoefrequences in 5th generationData х Environment: Clean Forest Moths...
calculate phenotype frequencies, allele frequencies, genotype
frequencies in 5th generationEnvironment: Clean ForestMoths ReleasedG1G2G3G4G5Typica250166259372521851Carbonaria750308254234210199Total10004745136067311050Phenotype FrequencyColorInitial FrequencyFrequency G5(Round to 2 decimal places)TypicaWhite0.25CarbonariaBlack0.75Allele FrequencyAllele FrequencyInitial allele frequencyG5 Allele Frequency(Round to 2 decimal places)qd0.50pD0.50Genotype FrequencyMothsGenotypesColorMoths releasedInitial FrequencyFrequency G5Number of moths G5q2TypicaddWhite2500.252pqCarbonariaDdBlack5000.50q2CarbonariaDDBlack2500.25
Hardy Weinberg assignment P + Q = 1 In which P represents frequency of dominant allele...
Hardy Weinberg assignment P + Q = 1 In which P represents frequency of dominant allele and Q represents frequency of the recessive allele P2 + 2PQ + Q2 =1 P2 represents frequency of homozygous dominant 2PQ represents frequency of heterozygous Q2 represents frequency of homozygous recessive Consider a population of beetles on an island. There are 1000 beetles and they have different colored wings. Black wings are dominant over silver wings. Calculate the allele and the genotypic frequencies in...
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):
1. Fixation of Dominant Alleles Start with a population that has a gene with two alleles (A and a...
1. Fixation of Dominant Alleles Start with a population that has a gene with two alleles (A and a) with classical Mendelian dominance that are at equal frequency (p0.5. q 0.5). Assume this first generation is at hardy Weinberg equilibrium. Calculate the genotype frequencies AA- a. Aa b. Now assume some environmental change that makes the recessive phenotype completely unfit (fitness- 0). Calculate the allele frequencies and genotype frequencies in the second generation. (Hint: Your calculations might be easier if...
ABO Blood Type allele frequencies: [I^O] = 0.7 , [I^A] = 0.2 , [I^B] = 0.1...
ABO Blood Type allele frequencies: [I^O] = 0.7 , [I^A] = 0.2 , [I^B] = 0.1 For the Rh factor frequencies: [Rh+] = 0.8 , [Rh-] = 0.2 1. In this population what is the frequency of the type "O", Rh positive individuals? 2. The rarest type of blood is type AB Rh negative. How many of these are expected in 1000 individuals? 3. In this population what will be the frequency go type "A", Rh negative individuals? 4. Assume...
Can you please help me with this problem:
6. If the initial allele frequencies are A = 0.3 and a = 0.7, and allele a is a lethal recessive, what will the allele frequencies be after 1 generation of random mating? (4 pts) |
2. Which of the following correctly describes how inbreeding will affect genotype and allele frequencies in Hardy-Weinberg populations? Genotype and allele frequencies will be unaffected. The frequency of heterozygotes will decrease, but allele frequencies will be unaffected. The frequency of homozygotes will increase, and deleterious alleles will decrease. Beneficial alleles will increase in frequency, as well as the genotypes containing those alleles. Genotype frequencies will return to H-W expectations after 1 generation of random mating. 3. Consider a population with...
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):...
calculate phenotype frequencies, allele frequencies, genotype
frequencies in 5th generationEnvironment: Clean ForestMoths ReleasedG1G2G3G4G5Typica250166259372521851Carbonaria750308254234210199Total10004745136067311050Phenotype FrequencyColorInitial FrequencyFrequency G5(Round to 2 decimal places)TypicaWhite0.25CarbonariaBlack0.75Allele FrequencyAllele FrequencyInitial allele frequencyG5 Allele Frequency(Round to 2 decimal places)qd0.50pD0.50Genotype FrequencyMothsGenotypesColorMoths releasedInitial FrequencyFrequency G5Number of moths G5q2TypicaddWhite2500.252pqCarbonariaDdBlack5000.50q2CarbonariaDDBlack2500.25
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):
1. Fixation of Dominant Alleles Start with a population that has a gene with two alleles (A and a) with classical Mendelian dominance that are at equal frequency (p0.5. q 0.5). Assume this first generation is at hardy Weinberg equilibrium. Calculate the genotype frequencies AA- a. Aa b. Now assume some environmental change that makes the recessive phenotype completely unfit (fitness- 0). Calculate the allele frequencies and genotype frequencies in the second generation. (Hint: Your calculations might be easier if...
Most questions answered within 3 hours.
-
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 24 minutes ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 55 minutes ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 2 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 2 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 3 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 5 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 5 hours ago -
implement a program that reads a number of rows and a symbol.
The program will draw...
asked 5 hours ago -
Assume that when adults with smartphones are randomly selected,
45% use them in meetings or classes....
asked 5 hours ago -
Determine the number of formula units of
Na2SO4 and moles of oxygen contained in 8.11
moles...
asked 5 hours ago -
Explain in steps on the following code
What would be the output when executed
using System;...
asked 5 hours ago -
Given the information in the table, which of the following
statements is CORRECT?
Stock A
Stock...
asked 5 hours ago