With two pairs of genes involved (P/p and Z/z), atestcross (ppzz) with an organism of unknown genotypeindicated that the gametes produced were in the followingproportionsPZ, 42.4%; Pz, 6.9%; pZ, 7.1%; pz, 43.6%Draw all possible conclusions from these data.
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With two pairs of genes involved (P/p and Z/z), a
testcross (ppzz) with an organism of unknown genotype
indicated that the gametes produced were in the following
proportions
PZ, 42.4%; Pz, 6.9%; pZ, 7.1%; pz, 43.6%
Draw all possible conclusions from these data.
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- Using the numbers provided in the attached image for the observed progeny counted for the testcross shown in the question above, perform a Chi-square analysis to determine whether you are correct as to the genotype of the unknown individual. Be sure to include a properly phrased hypothesis, the degrees of freedom, a complete Chi-square table, the Chi-square value, p-value range, and your determination of whether your hypothesis was correct.Still referring to Problem 1, what will be the possible genotypes of offspring from the following matings? With what frequency will each genotype show up? a. AABB aaBB b. AaBB AABb c. AaBb aabb d. AaBb AaBbA wild-type fruit fly (heterozygous for gray body color andnormal wings) is mated with a black fly with vestigial wings.The offspring have the following phenotypic distribution: wildtype, 778; black vestigial, 785; black normal, 158; gray vestigial,162. What is the recombination frequency between these genesfor body color and wing size? Is this consistent with the resultsof the experiment in Figure 15.9?
- Two alleles have been found at the X-linked phosphoglucomutase gene (Pgm) in a Drosophila persimilispopulation in California. The frequency of the PgmAallele is 0.25, while the frequency of the PgmBalleleis 0.75. Assuming the population is at Hardy-Weinbergequilibrium, what are the expected genotype frequencies in males and females?Two chromosome inversions are commonly found in populations ofDrosophila pseudoobscura: Standard (ST) and Arrowhead (AR). Whenthe flies are treated with the insecticide DDT, the genotypes for theseinversions exhibit overdominance, with the following fitnesses:Genotype FitnessST/ST 0.47ST/AR 1AR/AR 0.62What will the frequencies of ST and AR be after equilibrium has beenreached?Two organisms, with genotypes BbDD and BBDd, aremated. Assuming independent assortment of the B/b andD/d genes, write the genotypes of all possible offspringfrom this cross and use the rules of probability to calculate the chance of each genotype occurring.
- In a diploid plant species, an F1 with the genotype Mm Rr Ss is test crossed to a pure breeding recessive plant with the genotype mm rr ss. The offspring genotypes are as follows: Genotype Number Mm Rr Ss 687 Mm Rr ss 5 Mm rr Ss 68 Mm rr ss 196 mm Rr Ss 185 mm Rr ss 72 mm rr Ss 8 mm rr ss 679 Total 1900 1. What is the interference value for this data set?The genotype at one CODIS Core Locus for the mother is (3,8) and for the father is (5, 7). Answer the questions below as they relate to that one CODIS Core Locus. Show your calculations and explain your logic. If a forensic profile is (7, 8) for this CODIS Core locus, what is the probability that one of the two sons will match at both alleles and the other will match at just one allele?What is the expected genotype frequency of the heterozygous genotype under the Hardy-Weinberg equation P = 0.7?
- I have a vial of F2 offspring resulting from a two-generation cross between true-breeding wildtype females and true-breeding pink-bodied males. I scored F2 phenotypes for a total of 120 flies and obtain the following data: Based on the above observed data in the chart, determine the expected number of flies for the following three scenarios provided in a-c below. Show work for each calculation. 3) The mutant allele is recessive and is located on the X chromosomeE. W. Lindstrom crossed two corn plants with green seedlings and obtained the following progeny: 3583 green seedlings, 853 virescentwhite seedlings, and 260 yellow seedlings . Q. Give the genotypes for the green, virescent-white, and yellow progeny.In jabuticaba tree plant, Plinia cauliflora, the AA, Aa plants round fruit and aa oval fruit, the CC, Cc individuals show dark purple fruit and cc individuals are yellow; for the B locus B1B1 plants have all the fruit in their bark, B2B2 plants have fruit in the branches only and B1B2 plants have fruit in their bark and branches. A trihybrid jabuticaba having the genotype AaB1B2Cc is self-fertilized. Is there complete dominance at the B loci, yes or no? Please explain.