In a population, allele a has a fitness value of 1; allele b has a fitness value of .9 allele c has a fitness value of .5. Which of the following statements is true A. allele a is most likely to be lost from the gene pool B. b is most likely to be lost from the gene pool O C. c is most likely to be lost from the gene pool D. all three alleles will be maintained at their current frequencies in the gene pool
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- Why is "fitness" in selection referred to "relative fitness"? Group of answer choices A_"Relative fitness" refers to fitness of a genotype relative to the environment that organisms are in B_"Relative fitness" refers to fitness of some genotypes relative to other genotypes in a populationThe table below records information on a gene with two alleles, Z and Y, in four different populations. Use this information to answer the following questions. Based on the table, which of the following statements is true? Population Frequency of allele Z Population size Fitness of ZZ Fitness of ZY Fitness of YY A 1.0 200 0.84 0.84 1.0 B 0 320,000 0.84 0.84 1.0 C 0.93 130,000 0.84 0.84 1.0 D 0.99 1,450,000 1.0 1.0 0.62 A.) populations C's allele frequencies are mainly driven by genetic drift B.) Mutation rates are high in population D C.) natural selection is favoring allele A in population C D.) migration is occuring between populations C and DThe table below records information on a gene with two alleles, Z and Y, in four different populations. Use this information to answer the following questions. Assuming no migration between populations C and D, what do you predict the frequency of Z ought to be in population C, based on the conditions given in the table? Population Frequency of allele Z Population size Fitness of ZZ Fitness of ZY Fitness of YY A 1.0 200 0.84 0.84 1.0 B 0 320,000 0.84 0.84 1.0 C 0.93 130,000 0.84 0.84 1.0 D 0.99 1,450,000 1.0 1.0 0.62 Group of answer choices A.) 1.0 B.) 0 C.) 0.93 D.) 0.99
- A gene has two alleles that are associated with body mass in an additive manner. The table below shows the mean phenotype for each genotype, along with the frequency of each genotype in a population. Use this information to answer the following questions. A1A1 A1A2 A2A2 Mean mass (kg) 50 55 60 Frequency 0.01 0.18 0.81 a) How much does this locus contribute to additive genetic variation? b)A second locus (B) has two alleles (B1 and B2), which are also associated with body mass in an additive manner. Each copy of the B2 allele adds 2 kg of mass. The B2 allele is at a frequency of 0.6 in the same population as the A alleles are found. How much does the B locus contribute to additive genetic variation? c) Assume that these two loci are the only sources of additive genetic variance for body mass. The total phenotypic variance for body mass in the population is 10 kg2. What is the narrow sense heritability (h2) of body mass in this population? d)…A gene has two alleles that are associated with body mass in an additive manner. The table below shows the mean phenotype for each genotype, along with the frequency of each genotype in a population. Use this information to answer the following questions. A1A1 A1A2 A2A2 Mean mass (kg) 50 55 60 Frequency 0.01 0.18 0.81 a) How much does this locus contribute to additive genetic variation? b)A second locus (B) has two alleles (B1 and B2), which are also associated with body mass in an additive manner. Each copy of the B2 allele adds 2 kg of mass. The B2 allele is at a frequency of 0.6 in the same population as the A alleles are found. How much does the B locus contribute to additive genetic variation?Consider a gene with two alleles, C and M. The table below describes fitness for different genotypes in two populations. Fitness CC CM MM Population 1 1.0 1.0 0.6 Population 2 0.9 0.9 1.0 Which of the following is true based on this table? A.) C is recessive and M is dominant B.) M is recessive and C is dominant C.) Neither allele is dominant D.) C is dominant in population 1 and M is dominant in population 2
- In a hypothetical bug population, color is determined by a single gene and black is dominant over white. The frequency of the black allele is 0.1. If the population is in Hardy-Weinberg Equilibrium, what percentage of the bugs would you expect to be white? Please show your work.In a population that is in Hardy-Weinberg equilibrium, there are two possible alleles for a certain gene, A and a. If the frequency of allele A is 0.4, what fraction of the population is heterozygous? O A. 0.40 B. 0.60 C. 0.16 D. 0.48A population of cats is in Hardy Weinberg equilibrium for the S locus which causes patches of white fur. There are two alleles S and s. The frequency of the S allele is 0.3 and the frequency of the s allele is 0.7. What is the expected frequency of Ss cats in the population? Group of answer choices A. 0.21 B. 0.7 C. 1.0 D. 0.3 E. 0.42
- 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). What is the frequency of the dominant R allele in this population? a- 0.75 b- 0.87 c- 0.13 d- 0.25Which one of these statements about fitness is most accurate? A. Fitness is a measure of strength & health B. Fitness may change at a population level, but is constant for an individual C. Fitness can only be measured at the population level D. Fitness is a measure of reproductive success E. Fitness is an overall measurement that applies to all evolutionary mechanismsThe table below records information on a gene with two alleles, Z and Y, in four different populations. Use this information to answer the following questions. If migration were occurring between populations C and D, what do you predict the frequency of Z ought to be, based on the conditions given in the table? Population Frequency of allele Z Population size Fitness of ZZ Fitness of ZY Fitness of YY A 1.0 200 0.84 0.84 1.0 B 0 320,000 0.84 0.84 1.0 C 0.93 130,000 0.84 0.84 1.0 D 0.99 1,450,000 1.0 1.0 0.62 If migration were occurring between populations C and D, what do you predict the frequency of Z ought to be, based on the conditions given in the table? Group of answer choices A.) 0 B.) greater than 0 C.) 1.0 D.) random