Assume that the flower population described in the previous problem undergoes a different pattern of predation. Flower-color determination and the starting frequencies of C₁ and C₂ are as described above, but the new insects attack yellow and red flowers, not orange flowers. As a result of the predation pattern, the relative fitness values are C₁C₁ = 0.40, C₁C₂ = 1.0, and C₂C₂ = 0.80.

What are the equilibrium allele frequencies in the predation environment?

ABO blood type is examined in a Taiwanese population, and allele frequencies are determined. In the population, f (Iᴬ) = 0.30, f (Iᴮ) = 0.15, and f (i) = 0.55.f. Assuming Hardy–Weinberg conditions apply, what are the frequencies of genotypes, and what are the blood group frequencies in this population?

A sample of 500 field mice contains 225 individuals that are D₁D₁, 175 that are D₁D₂, and 100 that are D₂D₂.

What are the frequencies of D₁ and D₂ in this sample?

A sample of 500 field mice contains 225 individuals that are D₁D₁, 175 that are D₁D₂, and 100 that are D₂D₂.

Is this population in H-W equilibrium? Use the chi-square test to justify your answer.

A sample of 500 field mice contains 225 individuals that are D₁D₁, 175 that are D₁D₂, and 100 that are D₂D₂.

Is inbreeding a possible genetic explanation for the observed distribution of genotypes? Why or why not?

In humans the presence of chin and cheek dimples is dominant to the absence of dimples, and the ability to taste the compound PTC is dominant to the inability to taste the compound. Both traits are autosomal, and they are unlinked. The frequencies of alleles for dimples are D = 0.62 and d = 0.38. For tasting, the allele frequencies are T = 0.76 and t = 0.24.

Determine the frequency of genotypes for each gene and the frequency of each phenotype.

In humans the presence of chin and cheek dimples is dominant to the absence of dimples, and the ability to taste the compound PTC is dominant to the inability to taste the compound. Both traits are autosomal, and they are unlinked. The frequencies of alleles for dimples are D = 0.62 and d = 0.38. For tasting, the allele frequencies are T = 0.76 and t = 0.24.

What are the expected frequencies of the four possible phenotype combinations: dimpled tasters, undimpled tasters, dimpled nontasters, and undimpled nontasters?

Albinism, an autosomal recessive trait characterized by an absence of skin pigmentation, is found in 1 in 4000 people in populations at equilibrium. Brachydactyly, an autosomal dominant trait producing shortened fingers and toes, is found in 1 in 6000 people in populations at equilibrium. For each of these traits, calculate the frequency of the recessive allele at the locus

Albinism, an autosomal recessive trait characterized by an absence of skin pigmentation, is found in 1 in 4000 people in populations at equilibrium. Brachydactyly, an autosomal dominant trait producing shortened fingers and toes, is found in 1 in 6000 people in populations at equilibrium. For each of these traits, calculate the frequency of the dominant allele at the locus

Albinism, an autosomal recessive trait characterized by an absence of skin pigmentation, is found in 1 in 4000 people in populations at equilibrium. Brachydactyly, an autosomal dominant trait producing shortened fingers and toes, is found in 1 in 6000 people in populations at equilibrium. For each of these traits, calculate the frequency of heterozygotes in the population

Albinism, an autosomal recessive trait characterized by an absence of skin pigmentation, is found in 1 in 4000 people in populations at equilibrium. Brachydactyly, an autosomal dominant trait producing shortened fingers and toes, is found in 1 in 6000 people in populations at equilibrium. For each of these traits, calculate the frequency of For albinism only, what is the frequency of mating between heterozygotes?

The frequency of an autosomal recessive condition is 0.001 (1 in 1000) in a population.

What is the frequency of the mutant allele?

The frequency of an autosomal recessive condition is 0.001 (1 in 1000) in a population.

What is the frequency of carriers of the mutant allele?

The frequency of an autosomal recessive condition is 0.001 (1 in 1000) in a population.

Assuming individuals mate at random, what is the chance that two heterozygous individuals will mate?

Evaluate the following pedigree, and answer the questions below for individual IV-1. Is IV-1 an inbred individual? If so, who is/are the common ancestor(s)?

Evaluate the following pedigree, and answer the questions below for individual IV-1. What is F for this individual?

Evaluate the following pedigree, and answer the questions below. Which individual(s) in this family is/are inbred?

Evaluate the following pedigree, and answer the questions below. Who is/are the common ancestor(s) of the inbred individual(s)?

Evaluate the following pedigree, and answer the questions below. Calculate F for any inbred members of this family.

The following is a partial pedigree of the British royal family. The family contains several inbred individuals and a number of inbreeding pathways. Carefully evaluate the pedigree, and identify the pathways and common ancestors that produce inbred individuals A (Alice in generation IV), B (George VI in generation VI), and C (Charles in generation VIII).

Draw a separate hypothetical pedigree identifying the inbred individuals and the inbreeding pathways for each of the following inbreeding coefficients:

F=4(1/2)⁶

Draw a separate hypothetical pedigree identifying the inbred individuals and the inbreeding pathways for each of the following inbreeding coefficients:

F=2(1/2)⁵

Draw a separate hypothetical pedigree identifying the inbred individuals and the inbreeding pathways for each of the following inbreeding coefficients:

F=4(1/2)⁸

Draw a separate hypothetical pedigree identifying the inbred individuals and the inbreeding pathways for each of the following inbreeding coefficients:

F=2(1/2)⁷

New allopolyploid plant species can arise by hybridization between two species. If hybridization occurs between a diploid plant species with 2n = 14 and a second diploid species with 2n = 22, the new allopolyploid would have 36 chromosomes. Is it likely that sexual reproduction between the allopolyploid species and either of its diploid ancestors would yield fertile progeny? Why or why not?

New allopolyploid plant species can arise by hybridization between two species. If hybridization occurs between a diploid plant species with 2n = 14 and a second diploid species with 2n = 22, the new allopolyploid would have 36 chromosomes. What type of isolation mechanism is most likely to prevent hybridization between the allopolyploid and the diploid species?

New allopolyploid plant species can arise by hybridization between two species. If hybridization occurs between a diploid plant species with 2n = 14 and a second diploid species with 2n = 22, the new allopolyploid would have 36 chromosomes. What pattern of speciation is illustrated by the development of the allopolyploid species?