Homework Answers
Non sense mutation are mutation which is mutation which code for codon that code for one of genetic code and if it is dominant also it will not affect the rate because it is not effective the frequency of mutation. For example if it coding to random methionine than in generation will be methione but the frequency of mutation will effect the generation rate .
IIf it is recessive no generations rate will changed
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mutation rate
Question 1: In an infinitely large, diploid, random-mating population, we observe the frequency of...
In an infinitely large, diploid, random-mating population, we observe the frequency of nonsense mutations is equal...
In an infinitely large, diploid, random-mating population, we observe the frequency of nonsense mutations is equal to 10^-4 in a gene. A) If we assume the nonsense mutations cause complete infertility and are completely dominant, what is the nonsense mutation rate per gene per generation? (2 points) B) If we assume the nonsense mutations cause complete infertility but are complete recessive, what is the nonsense mutation rate? (2 points)
In a large random mating population of plants, 16,800 individuals express the phenotype of the do...
In a large random mating population of plants, 16,800 individuals express the phenotype of the dominant allele (genotypes AA and Aa) and 3200 express the phenotype of the recessive allele (genotype aa). a. What are the frequencies of the two alleles in this population? b. How many plants would be expected to heterozygous? c. You decide to select for the recessive phenotype and pull up 50% of the plants expressing the dominant phenotype. What will be the gene frequencies of...
Question 2: In an outbreeding diploid population, an autosomal locus has two alleles, A1 and A2....
Question 2: In an outbreeding diploid population, an autosomal locus has two alleles, A1 and A2. You observe the allele frequencies of A1 and A2 are both equal to 0.5, and the relative fitnesses of the three genotypes (A1A1, A1A2, and A2A2) are equal to 2, 1.5, and 1, respectively. A) Which allele will become fixed in this population? (1 point) **The recessive beneficial allele A2A2 will eventually become fixed in the population (A2A2=1) B) What is the allele frequency...
biology please help--gene pools 1. One of the important theoretical concepts in population genetics is that...
biology please help--gene pools
1. One of the important theoretical concepts in population genetics is that of genetic equilibrium, which the Aarge, randomly mating population, allele frequencies do not change from generation to generation frequencies in a population are to remain unchanged, all of the following teria must be met the population must be Irge, there must be no mutation or gone flow, masing must be randon, and there must be no natural selection El Is a consequence of swarty...
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...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozyg...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
Question 1: Antibiotics are effective against a population of bacteria. However, you observe a new resistance...
Question 1: Antibiotics are effective against a population of bacteria. However, you observe a new resistance allele arises in the bacteria population. You observe the fitness of the mutant is 1% higher than the wild type and the population size (N) of the bacteria is 106. A) How long does it take for the resistance allele to reach fixation? Hint: The fixation time is defined as the time from a single copy of the resistance allele (1/N) to near fixation...
Please show how to works with type. Thank you. Gene Frequencies We will let p designate...
Please show how to works with
type. Thank you.
Gene Frequencies We will let p designate the frequency (=proportion) of gene B in a population, and we will let q designate the frequency of gene b. Since these are the only two alleles for that characteristic, then p + q = 1. (When all possible outcome frequencies are added, the sum of their frequencies must equal one (certainty)]. Now let us assume that completely random mating and offspring survival occurs...
.) Under the infinite sites model of mutation, mtations are assumed to happen at a constant rate ...
.) Under the infinite sites model of mutation, mtations are assumed to happen at a constant rate u per individual per generation and cach mutation is assumed to occur at a different site. It can be shown, using the law of rare events, that the number of mutations that occur along a lincage is Poisson distributed, with mean ut, wheret is the length of the lincage in generations For the following questions, we will assume that mutation is governed by...
QUESTION 9 Suppose that in a population the frequency of a particular recessive condition is 1/400....
QUESTION 9 Suppose that in a population the frequency of a particular recessive condition is 1/400. Assume the presence of only a dominant allele (A) and a recessive allele (a) in the population and that the population is at Hardy-Weinberg equilibrium. What is the frequency of heterozygotes in the population? 0.0025 0.05 0.095 0.9025 0.0475 5 point QUESTION 10 A lizard population has two alleles conferring different tolerance to heat stress. In stressful heat conditions, the following genotypes give on...
biology please help--gene pools
1. One of the important theoretical concepts in population genetics is that of genetic equilibrium, which the Aarge, randomly mating population, allele frequencies do not change from generation to generation frequencies in a population are to remain unchanged, all of the following teria must be met the population must be Irge, there must be no mutation or gone flow, masing must be randon, and there must be no natural selection El Is a consequence of swarty...
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...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
Please show how to works with
type. Thank you.
Gene Frequencies We will let p designate the frequency (=proportion) of gene B in a population, and we will let q designate the frequency of gene b. Since these are the only two alleles for that characteristic, then p + q = 1. (When all possible outcome frequencies are added, the sum of their frequencies must equal one (certainty)]. Now let us assume that completely random mating and offspring survival occurs...
.) Under the infinite sites model of mutation, mtations are assumed to happen at a constant rate u per individual per generation and cach mutation is assumed to occur at a different site. It can be shown, using the law of rare events, that the number of mutations that occur along a lincage is Poisson distributed, with mean ut, wheret is the length of the lincage in generations For the following questions, we will assume that mutation is governed by...
QUESTION 9 Suppose that in a population the frequency of a particular recessive condition is 1/400. Assume the presence of only a dominant allele (A) and a recessive allele (a) in the population and that the population is at Hardy-Weinberg equilibrium. What is the frequency of heterozygotes in the population? 0.0025 0.05 0.095 0.9025 0.0475 5 point QUESTION 10 A lizard population has two alleles conferring different tolerance to heat stress. In stressful heat conditions, the following genotypes give on...
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