In a population of mice, there are two alleles of the A locus (A_{1} and A_{2}). Tests showed that in this population there are 300 mice of genotype A_{1}A_{1}, 200 of A_{1}A_{2} and 250 of A_{2}A_{2}. What is the frequency of the A_{2} allele in the population? (enter as decimal- with zero & rounded to nearest hundredth)
In a population of mice, there are two alleles of the A locus (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...
At a locus (A) with two alleles (A1 and A2) in a population of leeches, you accumulate the following genotypic data: A1A1 A1A2 A2A2 total observed # 35 151 109 295 Perform a chi-square test to determine whether this population is in Hardy-Weinberg equilibrium at this locus. Be sure to show your work and in a sentence or two interpret the result of the test.
QUESTION 18 Consider three cases of selection at a dialleic locus with alleles A1 and A2: Relative Fitnesses A2A2 A IAI A142 A2A2 - AIA A142 1242 AZAZ 1 0 .7 0.7 10.9 0.7 Initial Freq. of A1 -0.01; Generations - 500: Population size - Infinite. Al other conditions set to zero. Run the above model in the Alleel program Why does case 1 take so long to start to increase in frequency? Because natural selection can only act on...
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...
At a bi-allelic locus, alleles A1 and A2 have frequencies p = 1/4 and and q = 3/4. Relative to the current generation, F is 1/2. What is the frequency of genotype A1A1?
A gene has four alleles, A1, A2, A3, and A4. The alleles occur in a population at the following frequencies: A1=0.2, A2=0.1, A3=0.4, A4=0.3. Compute the following: a) Probability that a single allele chosen at random is either A1 or A4 b) Probability than an individual as two A1 alleles c) Probability that an individual has one A1 and one A3 allele d) Probability that an individual is NOT A1A1 e) Probability that if we drew two individuals at random,...
A population is made up of individuals where 74 have the A1A1 genotype, 192 have the A1A2 genotype, and 145 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.
At a biallelic locus, suppose that genotypes A1A1, A1A2, and A2A2 have relative fitnesses 1, 1.02, and 1.03 and that the frequency of A1 is p = 0.1. (a) What is the population’s mean relative fitness? (b) What are the “marginal” or allele-specific relative fitnesses of A1 and A2? (c) What is the expected frequency of A1 in the following generation?
5. Examine the following fabricated data for a population of oak trees. Genotype Height Number of individuals with this genotype in generation 1 Number of individuals with this genotype in generation 2 A1A1 5 meters 100 200 A1A2 10 meters 100 A2A2 15 meters 100 200 TOTAL: 300 450 a. (2 pts) What is the allele frequency of A1 in the first generation? b. (2 pts) is this population in Hardy-Weinberg Equilibrium? Show your work.
If the genotypes A1A1, A1A2, and A2A2 have frequencies 0.5, 0.25, and 0.25 respectively, what are the frequencies of the A1 and A2 alleles? b) After a single generation of random mating, what are the expected frequency of A1A1, A1A2 and A2A2 in the offspring? c) If A2 is a recessive allele causing freckles, how many freckled offspring do you expect if there are 441 offspring in total?