Answer:
940 AA = 1880 A
1055 Aa = 1055 A & 1055a
5aa = 10 a
Total alleles = 4000
Total alleles, A = 1880 + 1055 = 2935
Frequency of allele, A = 2935 / 4000 = 0.73
Total alleles, a = 10 + 1055 = 10655
Frequency of allele, a = 1065 / 4000 = 0.27
The expected genotype, AA frequency = 0.73 * 0.73 = 0.5329
Number of AA individuals = 0.5329 * 2000 = 1066
The expected genotype, Aa frequency = 2* 0.73 * 0.27 = 0.3942
Number of Aa individuals = 0.3942 * 2000 = 788
The expected genotype, aa frequency = 0.27 * 0.27 = 0.0729
Number of Aa individuals = 0.0729 * 2000 = 146
In Andalusian fowl, a single gene determines feather color. Individuals are either white (aa), gray (Aa),...
A population of flour beetles has 1000 individuals. Normally the beetles are red in color; however, this population has a utation in the gene for body color that results in black beetles that are designated by the rr genotype. Red body color is dominant to black so the genotypes RR and Rr result in red beetles. Assume the population is in Hardy-Weinberg equilibrium, with a 50% frequency of each allele for body color. A) --- what is the frequency of...
1. You are studying a color polymorphism in a population of soapberry bugs. A single gene controls color variation; individuals with at least 1 copy of the R allele at this locus are red while individuals of the rr genotype are white. You know that this population satisfies the conditions for Hardy-Weinberg Equilibrium, and that 64% of the population shows the red phenotype. What is the frequency of the R allele? Show your work. 2. Male Trinidadian guppies use bright...
Consider a locus of interest that has two alleles: A and a. A diploid individual carrying these alleles can have one of three genotypes: AA, Aa, or aa; a population will consist of some combination of AA, Aa, and aa individuals. The relatively frequency of each of these genotypes makes up the population's structure. Hardy and Weinberg independently figured out that, in the absence of forces that cause evolutionary change, the population structure will 'settle' or default to equilibrium values,...
1) In peas, a gene controls flower color such that R = purple and r = white. In an isolated pea patch, there are 36 purple-flowering plants and 64 white-flowering plants. Assuming Hardy-Weinberg equilibrium, what is the frequency of the white allele (q) for this population? 2) In an insect population at HWE where 16% of the population displays a recessive phenotype for green eyes conferred by gg, while the rest have black eyes (and are thus GG or Gg),...
In rats, pattern of coat color is controlled by a gene with two alleles. P is the allele for hooded, in which the animal is mostly white with color restricted to the shoulders and neck. P is the normal solid body color allele. These two alleles exhibit incomplete dominance, so that heterozygotes have white bellies only. In a population of rats, the following phenotypes are observed: 60 solid color 40 white belly 100 hooded Question: If this population of rats...
In a population, researchers found three genotypes for the gene A with following frequencies: AA: 0.25 Aa: 0.26 aa: 0.49 Question 2 With the present allele frequencies, what proportions of the dominant phenotype would you expect in the population if it were at Hardy Weinberg equilibrium? (rounded to the nearest digit) O 0.62 O 0.51 O 0.69 O 0.77 O 0.14
14. Given below are the genotypic frequencies for a single gene with two alleles for three different populations: Population 1 AA 0.25 Aa 0.50 aa 0.25 Population 2 0.35 0.56 0.09 Population 3 0.49 0.42 0.09 Which of the following is NOT a correct statement about these three populations? A) Only two of the populations are in Hardy-Weinberg equilibrium B) Population 1 is in Hardy-Weinberg equilibrium; the frequency of allele A is 0.5 C) Population 2 is not in Hardy-Weinberg...
Please show work. Thank you. 12. A small portion of deer have a trait called leucism, which is white coat. The frequency of the leucitic phenotype is 0.00005 (or 1/20,000). Leucism is recessive to wild type color. Assuming that the deer population is in Hardy-Weinberg equilibrium fr A. Estimate the frequencies of the recessive leucistic allele (I) and the dominant wild type allele (L) B. Estimate the frequency of deer with heterozygous genotype C. For the calculations above, you assume...
1. A particular gene in a given population of individuals has two alleles, A and a. The frequency of the A allele equals the frequency of the a allele. What are the expected genotype frequencies, assuming the population is in Hardy-Weinberg equilibrium? AA = 0.5, aa = 0.5 AA = 0.25, Aa = 0.50, aa = 0.25 O A = 0.5, a = 0.5 The answer cannot be determined because the allele frequencies are not provided.
An Amazon rainforest population of leaf beetles has 100,000 individuals. The beetles exist in two color morphs, purple and green. Purple beetles live on epiphytic orchid blooms whereas the green beetles inhabit the leaves of the orchid plants. The color is controlled by two alleles at a single gene locus. The purple allele (P) is dominant to the green allele (p) 36% of the beetle population is green and the other 64% of the population is purple. Assuming the population...