8. According to. Hardy equilibrium law allele frequency remain constant after one generation .
9.At equilibrium stage the sum of allele frequency will be 1 so p+ q = 1.
How do I calculate question 9? Genetics This is about a squirrel population at RSU reserve....
1) you observe a population with 4000 zygotes with the genotype AA,800 zygotes with the genotype Aa, and 50 zygotes with the genotype aa. a) what are the frequencies of the three genotypes and the A and a alleles in the zygotes? b) you come back later to this population and determined there are the following number of juveniles:3000 AA, 700 Aa, and 12 aa genotype. calculate the relative fitness w, and the selection coefficient for each of he 3...
Problem ***. A population of jewel beetles has a striped and plain phenotype. Two stripes is the recessive phenotype. Plain is the dominant phenotype. However, heterozygote individuals an intermediate phenotype bearing one stripe. Jewel beetles are abundant on islands. On one particular island an invasive rodent has been introduced which preferentially preys on striped beetles. In a population sof 26,760 beetles. Approximately 18,200 beetles are two striped. Calculate the genotypic and allele frequencies. If the introduced rodent consumes 70% of...
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...
1) (a) A single gene in horses determines coat (hide) color. Palomino (‘dove’) horses are heterozygous (Aa), while homozygous recessive (aa) are cremello, and homozygous dominant (AA) are chestnut. A horse rancher buys 80 palomino horses and 20 cremello horses and lets them breed free. (a) (10 pts) What are frequencies of alleles and genotypes in THIS (parent) generation? Are all genotypes represented? Show your calculations. Is the population at this moment (i.e. in THIS generation) in Hardy-Weinberg balance or...
Sickle-cell anaemia is an example of how fitness depends on environmental conditions. In places where malaria, caused by Plasmodium falciparum is common, HbAHbS heterozygotes have a selective advantage compared to individuals who are homozygotes for the wild type allele. However, HbSHbS homozygotes suffer from sickle-cell anaemia and usually die before producing offspring. The relative fitness (w) of the three genotypes in Nigeria are: HbAHbA 0.78, HbAHbS 1.0 HbSHbS 0.07 a. What is the mathematical relationship between relative fitness and selection...
Problem Description: A gene with two alleles (e.g. A and a) is responsible for a dominant trait in Hellbenders (Cryptobranchus alleganiensis). AA individuals have a normal phenotype, while those with aa lack the trait. Heterozygotes have phenotypes that are identical to AA individuals. Although aa individuals have lower survivorship (15%) than those with the “normal” trait (35%), they have higher fecundity over their lifetime (100 individuals for aa; compared to 48 for AA and Aa). Assume the allele frequency of...
PLEASE SHOW GRAPH ONLY. A gene with two alleles (e.g. A and a) is responsible for a dominant trait in Hellbenders (Cryptobranchus alleganiensis). AA individuals have a normal phenotype, while those with aa lack the trait. Heterozygotes have phenotypes that are identical to AA individuals. Although aa individuals have lower survivorship (15%) than those with the “normal” trait (35%), they have higher fecundity over their lifetime (100 individuals for aa; compared to 48 for AA and Aa). Assume the allele...
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 (...
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...
1 IW (A) Explain the following concepts. 2 marks) [2 marks) 2 marks 1. Population (in population genetics) 2. Hardy Weinberg Equilibrium 3. Mendel's laws of segregation (B) Consider a self-fertilizing population of plants that consists of 25% AA, 50% Aa, and 25% . Write down the genotype frequencies of AA, Aa, and aa after one generation of self- fertilization, assuming that there is a constant reproduction rate for all genotypes 4 marks 2 marks 2. At this generation, show...