Assume two alleles A1 and A2 with known frequencies e.g. p (A1) = 0.7, q (A2)= 0.3 What would be the frequency of the A1A2 ? a. 0.49 b. 0.09 c. 0.21 d. 0.42
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Assume two alleles A1 and A2 with known frequencies e.g. p (A1) = 0.7, q (A2)= 0.3
What would be the frequency of the A1A2 ?
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- Using the information in the table:a. Find the non informative and obligate allele from the above chart. b. What would be your interpretation about this result c. For all the obligate alleles the allele frequency is 0.085. Calculate the probability of paternity. d. A new born was found abandoned on a roadside. From a rich database of the fingerprint how could you find the parents of this new born?In a population of mountain lions, 9% of the individuals suffer from a disease caused by a recessive allele (aa). A) Calculate the frequency of both the dominant and recessive alleles. B) What is the percentage of homozygous dominant individuals and what is the percentage of heterozygous individuals in the population?a) The allele frequency of albinism is 0.12 in a population of 450 individuals. If the number of individuals that are carriers of albinism is 101. Calculate the number of individuals with normal pigmentation? b) A rare disease which is due to a recessive allele (A) that is lethal when homozygous occurs within a specific population at a frequency of three in a million. How many individuals in a town with a population of 3000 will be expected to carry this allele?
- The Valyrian elders are doing projections about the future and want to calculate the frequencies of certain genotypes in the next generation. They are only interested in figuring out what proportion of the next generation will bear the signature Valyrian silver hair phenotype. (Assume the allele frequencies remain unchanged from the first part of this question.) A-What will the frequency of the AA genotype be? b-What will the frequency of the Aa genotype be?A population of mice contains 20 animals Show work here: with white tails and 30 animals with grey tails. Grey tails are the dominant trait. a. What is the frequency of the white allele? b. What is the frequency of the grey allele? c. What is the frequency of heterozygotes? d. What is the frequency of mice homozygous for the grey allele?A mountain region has a population of 5,000 mountain goats. You score these animals for the R locus and find that this locus has two alleles, R (dominant) and r (recessive). 3200 individuals are homozygous dominant, 1,600 are heterozygous, and 200 are homozygous recessive. a) Calculate the allele frequencies for this population. Show your work. b) Calculate the observed genotypic frequencies for this population. Show your work. c) Calculate the expected genotype frequencies if the population is in Hardy-Weinberg equilibrium. Show your work. d) Does this population appear to be at H-W equilibrium? Why or why not? (You do not need to analyze this statistically).
- In plants, a trait has a narrow-sense heritability of 0.75. This indicates a) the trait is inherited from a parent 75% of the time. b) the proportion of phenotypic variance due to environmental variance. c) the degree of inbreeding from artificial selection. d) the proportion of variance due to additive alleles.Using the HardyWeinberg Law in Human Genetics In a given population, the frequencies of the four phenotypic classes of the ABO blood groups are found to be A = 0.33, B = 0.33, AB = 0.18, and i = 0.16. What is the frequency of the i allele?1.9 What is expected to happen to the frequency of an allele B in a very small population of interbreeding individuals that separate from the main population? A. decrease B. cannot be predicted C. increase D. fluctuate
- Recall that the alleles for blood groups are A, B, O, and that A and B are each dominant to O, and A and B are codominant (AA and AO= A blood type; BB and BO = B blood type; AB = AB blood type; OO = O blood type). According to the Red Cross, in the US Asian population the alleles frequencies of A, B, an O are 18.8%, 17.6%, and 63.6%, respectively. If a mother and son from this population have blood type AB and the father has blood type B, what is the probability that the father’s genotype is BB?A population of dragons or Varanus dragonus has two alleles B and P encoding for phenotypes blue and purple scales, is dominant over B. You have population of 345 individuals. PP = 100, BP; =90 , and BB = 155 . What is the frequency of the P allele? Please use and round to four decimal points.****Note for question 1 - you have been given the frequency of the two alleles (dominant and recessive = p + q=1) and you are using those allele frequencies to calculate the genotype frequencies. p2 + 2pq + p2