A farmer plants Bt cotton that is genetically modifed to produce its own insecticide. Of the cotton bolworms feeding on these Bt plants, only 8% survive unless they have at least one copy of the dominant resistance allele R that confers resistance to the Bt insecticide. When the farmer first plants Bt cotton, the frequency of the Rallele in the cotton bolworm population is 0.4. What will the frequency of the resistance allele be after one generation of cotton bolworms fed on Bt cotton? O 0.296 O 0.059 O 0.87 O0.402 O 0.041 O 0.0375

A farmer plants Bt cotton that is genetically modifed to produce its own insecticide. Of the cotton bolworms feeding on these Bt plants, only 8% survive unless they have at least one copy of the dominant resistance allele R that confers resistance to the Bt insecticide. When the farmer first plants Bt cotton, the frequency of the Rallele in the cotton bolworm population is 0.4. What will the frequency of the resistance allele be after one generation of cotton bolworms fed on Bt cotton? O 0.296 O 0.059 O 0.87 O0.402 O 0.041 O 0.0375

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter14: Biotechnology And Society

Section: Chapter Questions

Problem 10QP

See similar textbooks

Similar questions

A farmer is raising rabbits. The average body weight in his population ofrabbits is 3 kg. The farmer selects the 10 largest rabbits in his population,whose average body weight is 4 kg, and interbreeds them. If the narrowsenseheritability of body weight in the rabbit population is 0.7, what is theexpected body weight among the offspring of the selected rabbits?
Entomologists at the New York State Department of Agriculture are interested in determiningthe connection between pest insects infesting crop plants with populations of the same insectinfesting native plants in natural habitats. Long term trapping and monitoring studies haveestimated that on average 3% of the populations move between habitats (farm to natural and visversa) each generation. A new insecticide resistance allele (∆K) has begun to increase infrequency in the agricultural populations. A genotyping survey at this locus of 50 individuals ineach population has revealed the following genotype counts: K/K K/∆K ∆K/∆K Agricultural field 32 16 2 Forest 48 2 0 4a. Based on the effects of migration alone, what will the frequency of ∆K be in the forestpopulation in the next generation? 4b. If migration was acting in here without selection, what would the frequency of ΔK be in theagricultural population in the next generation? 4c. If the natural forest population was…
In a certain population of frogs, 120 are green, 60 arebrownish green, and 20 are brown. The allele forbrown is denoted GB, while that for green is GG, andthese two alleles are incompletely dominant.a. What are the genotype frequencies in thepopulation?b. What are the allele frequencies of GBand GG inthis population?c. What are the expected frequencies of the genotypes if the population is at Hardy-Weinbergequilibrium?
A graduate student is studying a population of bluebonnets along aroadside. The plants in this population are genetically variable. Shecounts the seeds produced by each of 100 plants and measures the meanand variance of seed number. The variance is 20. Selecting one plant,the student takes cuttings from it and cultivates them in a greenhouse,eventually producing many genetically identical clones of the sameplant. She then transplants these clones into the roadside population,allows them to grow for one year, and then counts the seeds produced byeach of the cloned plants. The student finds that the variance in seednumber among these cloned plants is 5. From the phenotypic variancesof the genetically variable and the genetically identical plants, shecalculates the broad-sense heritability.
Assume that in a certain population of giraffes, dark brown spots are dominant to light brown spots. If the frequency of dark brown giraffes is 56%, what is the frequency of the dark brown allele? Hint: the frequency that is provided is the frequency of a specific phenotype (i.e. not a genotype frequency)
Two hypothetical lizard populations found on opposite sides of a mountain in the Arizonan desert havetwo alleles (AF, AS) of a single gene A with the following three genotype frequencies:AFAF AFAS ASASPopulation 1 38 44 18Population 2 0 80 20a. What is the allele frequency of AFin the twopopulations?b. Do either of the two populations appear to be atHardy-Weinberg equilibrium?c. A huge flood opened a canyon in the mountainrange separating populations 1 and 2. They werethen able to migrate such that the two populations, which were of equal size, mixed completelyand mated at random. What are the frequenciesof the three genotypes (AFAF, AFAS, and ASAS) inthe next generation of the single new populationof lizards?
Imagine a population of raccoons in which food-washing behaviour is controlled by the W locus. WW individuals wash their food thoroughly before eating; Ww individuals wash their food less thoroughly; and ww individuals never wash their food. After observing 1000 raccoons, you count 300 WW, 200 Ww and 500 ww individuals. What is the frequency of the w allele for this population? A. 0.5 B. 0.6 C. 0.7 D. Because the population is not in Hardy-Weinberg equilibrium at this locus, it is impossible to calculate the frequency of allele w.
In a population of 300 humans, the following blood type frequencies for the MN blood group are reported170 Blood type M110 Blood type MN20 Blood type NWhat is the frequency of the M allele in this population? A.) 0.75 B.) 0.57 C.) 0.65 D.) 0.47
A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r). In this population of plants, approximately how many copies of the r allele are there? Group of answer choices a. 750 b. 230 c. 20 d. 130 e. 870
60 individuals have the genotype AA28 individuals have the genotype Aa12 individuals have the genotype aaWhat is the frequency of the A allele?Think of how many alleles in total?hint: add up the number of A alleles in this population: AA= 60+60 and Aa= 28.Add those together and divide by the total number of alleles.
In a population of 1000 baby kitties, 40 are white because of a recessive allele (b). Non-white cats are either homozygous dominant (BB) or heterozygous dominant (Bb). What is the frequency of heterozygous kitties in the population?A. 0.2B. 0.32C. 0.8Please show all the work!
In carnations, the red pigment (RR) is incompletely dominant to white (rr). The heterozygote (Rr) is pink. In a randomly mating field of carnations, 42 plants were red, 178 plants were pink, and 180 plants were white (total =400). What is the best estimate of the allele ferequency, for the red allele in this population?