In a randomly breeding population, the frequency of the dominant allele (D) is 0.8. The relative fitness of DD and Dd is 1.0 while dd is 0.4. If you allow one generation of selection against dd, what is the genotypic frequency of dd after selection? A. 0.016 B. 0.328 C. 0.656 D. 0.564
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- In a randomly breeding population, the frequency of the dominant allele (D) is 0.8. The relative fitness of DD and Dd is 1.0 while dd is 0.4. If you allow one generation of selection against dd, what is the genotypic frequency of dd after selection? A. 0.016 B. 0.328 C. 0.656 D. 0.564The relative fitness values of three genotypes are wA/A =1.0, wA/a = 1.0, and wa/a = 0.7.a. If the population starts at the allele frequency p =0.5, what is the value of p in the next generation?b. What is the predicted equilibrium allele frequency ifthe rate of mutation of A to a is 2 × 10−5?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. 0.48
- In a population of frogs, allele frequencies for gene B are: p = f(B) = 0.3 q = f(b) = 0.7 If the population has 500 frogs and is under Hardy-Weinberg equilibrium, what is the genotypic frequency of the Bb genotype? A. 150 B. 280 C. 210 D. 90Assume you are studying a population of fire toads and want to predict what happens after a selection event. There is a freeze event. Before the freeze event you measured body size and found the average body size was 50 grams. After the freeze event you measured the surviving toads and their average body size was 70 grams. Based on your previous studies you know that the narrow-sense heritability is 0.5 What is the response to selection in this population? a. 5 grams b. 10 grams c. 20 grams d. None of the aboveIn a population of 1000 mice, the allele frequency for dominant brown fur is 0.25. The population is in Hardy-Weinberg equilibrium. How many individuals will be heterozygous in the population? A. 375 B. 625 C. 750 D. 500
- In a species of lily, the color of the flower’s petals is determined by a dominant purple allele (F) or recessive white allele (f). One hundred flowers in Hardy-Weinberg equilibrium were sampled, and only 15% of the population showed the phenotype of white. Which of the following numbers represents the calculated value of the recessive white allele frequency? A - 0.92 B - 0.39 C - 0.15 D - 0.85A 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. 0.42A certain autosomal recessive trait occurs in a population with a frequency of 1 in 4900. Assuming that the population is in Hardy-Weinberg equilibrium, what is the expected frequency of heterozygous carriers in this population? A.) 0.014 B.) 0.971 C.) 0.028 D.) There is not enough information to determine this.
- In a randomly breeding population, the frequency of the dominant allele (D) is 0.8. The relative fitness of DD and Dd is 1.0 while dd is 0.4. If you allow one generation of selection against dd, what is the gene frequency of d after selection? A. 0. 18 B. 0.32 C. 0. 82 D. 0.64How would the graph of the number of individuals of a population that has experienced disruptive selection be different than the normal distribution? Select all that apply. a There would be more individuals at the extremes. b There would be one peak. c There would be more individuals in the middle. d There would be no difference from the normal distribution. e There would be two peaks.In a population of red (dominant allele) or white flowers in Hardy–Weinberg equilibrium, the frequency of red flowers is 91%. What is the frequency of the red allele? a. 9% b. 30% c. 91% d. 70%