The following conditions are required for Hardy-Weinberg equilibrium: Mutation, non-random mating, migration and directional selection No migration a no selection No mutation of alleles, random mating and migration Non-random mating, differential frequency selection and no mutations Small population, no mutation and genetic drift

The following conditions are required for Hardy-Weinberg equilibrium: Mutation, non-random mating, migration and directional selection No migration a no selection No mutation of alleles, random mating and migration Non-random mating, differential frequency selection and no mutations Small population, no mutation and genetic drift

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 3TYU: The MN blood group is of interest to population geneticists because (a) people with genotype MN...

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Of the statements provided, which one is true for Hardy-Weinberg Equilibrium (HWE)? O The population is evolving due to genetic drift. O Natural Selection is not occuring within the population. Op+q=1 calculates genotype frequencies. O Individuals within the population move back and forth between another nearby population.
The MN blood group is of interest to population geneticists because (a) people with genotype MN cannot receive blood transfusions from either MM or NN people (b) the MM, MN, and NN genotype frequencies can be observed directly and compared with calculated expected frequencies (c) the M allele is dominant to the N allele (d) people with the MN genotype exhibit frequency-dependent selection (e) people with the MN genotype exhibit heterozygote advantage
Under idealized Hardy-Weinberg conditions, which of the following is FALSE? [1] O mutation rates will increase with each generation O no new alleles would be added to the population's gene pool O there will be no change in alelle frequencies in a population over time O the population is so large that random affects don't change allele frequencies all of these are true
The relative fitnesses of A,A1. A,Az and A2A2 are 0.5. 0.8, and 1 respectively. What is the expected result of natural selection in this situation? A, will increase and A2will decrease. O A2 will increase and A, will decrease. Both alleles will decrease in frequency. A stable equilibrium will be achieved in which both alleles are maintained. An unstable equilibrium will exist and the outcome depends on the allele frequencies.
In a population experiencing no selection, genetic drift, gene flow, mutation or non random mating, the allele frequencies at a locus where the R allele is dominant over the r allele, are as follows. R= 0.3 r=0.7 What is the expected heterozygosity of the population at that locus?
Natural selection acts on phenotypes within a population. As a result, over time, the phe- notypic frequencies in a population can change. The graph below shows how the pheno- type of a population changed after selection occurred. Number of Individuals B Value of Phenotype A graph that shows how phenotypic frequency changed before and after selection. с population after selection Which of the following scenarios would most likely result in the phenotypic change shown in the graph above? D original population A A population of rats live on the ground and in short trees. A tree-dwelling snake that preys on the rats is introduced into the area. Warming of the arctic tundra reduces the average snow cover that lighter-colored arctic foxes rely on for camouflage. Darker-colored arctic foxes are better suited to the ex- posed moss and grass habitat. Robins that lay smaller-than-average clutches of eggs produce fewer viable offspring, while larger-than-average clutches of eggs result in…
Populations in Hardy-Weinberg equilibrium show no change in allele frequencies from one generation to the next, assuming that certain conditions are met. Which condition is being violated in this image? *** O No gene flow O No genetic drift O No mutation O Random mating 4
Choose the assumption of the Hardy-Weinberg equilibrium that best applies to the following statement. "Random changes of DNA can lead to new genes which code for proteins that give an organism a new adaptation." O Random Mating O No Gene Flow O Large Population Size O No Natural Selection O No Mutation
For each of the following, identify whether it will primarily cause changes in allele frequency, genotype frequency, either allele or genotype frequency (depending on the situation), or no change is expected. Assortative Mating Mutation Migration Selection Genetic Drift [Choose ] [Choose ] allele frequency no change is expected genotype frequency either allele or genotype frequency [Choose ] [Choose ] allele frequency
The equilibrium frequency of a deleterious allele under mutation-selection balance increases as: mutation rate increases strength of selection increases dominance increases none of the above
Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed population Large population Random mating No net mutations No natural selection If any of these conditions is not being met, the allele frequencies in the population will change, leading to microevolution in the population.Match each of the following scenarios to the Hardy–Weinberg condition that is NOT being met:An increase in antibiotic resistance among bacteria exposed to antibiotics occurs. AnswerCaribou from one herd move to a new area and breed with caribou of a completely different herd. Answer Among eastern bluebirds, more brightly coloured males breed with more brightly coloured females. AnswerDue to overhunting, there is little genetic diversity in the current population of bearded vultures, which have all descended from a population of only 36 birds. Answer
Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed population Large population Random mating No net mutations No natural selection If any of these conditions is not being met, the allele frequencies in the population will change, leading to microevolution in the population.Match each of the following scenarios to the Hardy–Weinberg condition that is NOT being met:An increase in antibiotic resistance among bacteria exposed to antibiotics occurs. Caribou from one herd move to a new area and breed with caribou of a completely different herd. Among eastern bluebirds, more brightly coloured males breed with more brightly coloured females. Due to overhunting, there is little genetic diversity in the current population of bearded vultures, which have all descended from a population of only 36 birds.