The results of a test cross of a fruit fly that is heterozygous for three traits encoded by the genes E, D, and A summarized below. You can see numbers ofoffspring that inherited each combination of alleles from heterozygous parent. Use this data to calculate a frequency of recombinations and to make a map.131edaeDA1779Eda1654EdA13EDa241EDA118edA252eDa9total:4197

To calculate the frequency of recombinations for each pair of genes, we first need to determine the…

Answered: The results of a test cross of a fruit…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Similar questions

In cats, a black cat when crossed with a white cat produces a tabby which appears to be a grey cat striped with black and white fur. Upload solutions in the google classroom. What is the F1 phenotypic ratio of a cross between a black and white cats. Write numerical answer only. When tabby cats are crossed with black cats. What is the phenotypic ratio of the offspring? Write numerical answers only. When tabby cats are crossed with black cats. What are the phenotypes of the offspring? Write in CAPITAL LETTERS and separate with comma. When tabby cats are crossed with white cats. What is the phenotypic ratio of the offspring? Write numerical answers only. What is the specific mode of inheritance behind this phenomenon? White in CAPITAL letters only.
A 3-point test cross produces the following numbers of offspring: The yellow cells are the recombinant + + a 348 offspring that result from a single cross-over between A & G. What is the distance g x + 363 between those two genes? + X + 88 O 18.8 mu g + a 96 O 89.5 mu g + 61 O cannot be determined from the information given + X a 40 89.9 mu g x a 1 O 18.4 mu + + + 3.
In letter B: If the map distance equals the number of recombinant/total of offspring, wouldn't it be 24/806 x 100? Wouldn't we add both recombinants? Can you explain letter C? I don't grasp that concept well. And since I'm using my question already, would you be able to answer D. Thank you!
Use the following information to answer the next question. In a breeding experiment, a pure plant with round seeds and green pods (RRGG) was crossed with another pure plant with wrinkled seeds and yellow pods (rrgg). The phenotypes of the F2 generation were: 1780 plants with round and green pods, 620 plants with round seeds and yellow pods, 590 plants with wrinkled seeds and green pods and 195 plants with wrinkled seeds and yellow pods. Which law is proved by the result of this experiment? Law of Segregation Law of Mutation Law of Independent Assortment Law of Dominance
Two different house Flys were crossbreed for 2 generations. The female was a wild fly and the male was a mutant with apterous wings and a black body. Given the data of the second generation: is this data consistent with the expected 9:3:3:1 ratio expected of a dihybrid cross?
Choose one pls
Two genes in chromosome 7 of corn are identified by the recessive alleles gl (glossy), determining glossy leaves, and ra (ramosa), determining branching of ears. When a plant heterozygous for each of these alleles was crossed with a homozygous recessive plant, the progeny consisted of the following genotypes with the numbers of each indicated: Calculate the frequency of recombination (as a decimal) between these genes. Gl ra / gl ra Gl Ra/gl ra 98 7 gl Ra/gl ra gl ra / gl ra 91 4
Calculate the map distances between the genes.
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?
A test cross between a plant of genotype PpSs and the tester white plant with wrinkled seed coat (ppss) gives the following numbers of progeny in four phenotypic types. 14:87:83:16 (purple flower + smooth seed coat: purple flower + wrinkled seed coat: white flower + smooth seed coat: white flower + wrinkled seed coat). a. What is the expected ratio of progeny phenotypes assuming independent assortment of alleles? b. Explain how ratios of progeny show that the two genes are linked. c. How many map units separate the purple and smooth genes? Show your calculations. d. What is the “parental” genotype of the heterozygous parent? (i.e. Which alleles of the P and S loci are present on each of the two chromosomes of the doubly heterozygous parent of this test cross?)
Calculate the map distances among the genes.

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