F1 x F1 self-fertilization gives a 9:7 phenotypic ratio in the F2. What phenotypic ratio would you expect if you test-crossed the F1? b) An F1 x F1 self-fertilization gives a 9:3:4 phenotypic ratio in the F2. What phenotypic ratio would you expect if you test-crossed the F1? c) An F1 x F1 self-fertilization gives a 15:1 phenotypic ratio in the F2. What phenotypic ratio would you expect if you test-crossed the F1?

F1 x F1 self-fertilization gives a 9:7 phenotypic ratio in the F2. What phenotypic ratio would you expect if you test-crossed the F1? b) An F1 x F1 self-fertilization gives a 9:3:4 phenotypic ratio in the F2. What phenotypic ratio would you expect if you test-crossed the F1? c) An F1 x F1 self-fertilization gives a 15:1 phenotypic ratio in the F2. What phenotypic ratio would you expect if you test-crossed the F1?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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In 1908 F. M. Durham and D. C. E. Marryat reported the results of breeding experiments with canaries. Cinnamon canaries have pink eyes when they first hatch, whereas green canaries have black eyes. Durham and Marryat crossed cinnamon females with green males and observed that all the F1 progeny had black eyes, just like those of the green strain. When the F1 males were crossed to green females, all the male progeny had black eyes, whereas all the female progeny had either black or pink eyes, in about equal proportions. When the F1 males were crossed to cinnamon females, four classes of progeny were obtained: females with black eyes, females with pink eyes, males with black eyes, and males with pink eyes—all in approximately equal proportions. Propose an explanation for these findings.
what is the true breeding means and what a test cross is?
A- Using a Punnett Square show a cross between a homozygous red fox with a homozygous white fox. Let red be dominant. Give the genotype and phenotype for F1 and F2 generations. B- Using a Punnett Square show the cross between a heterozygous gray skunk with a homozygous white skunk. Let gray be dominant. Give the genotype and phenotype for F1.
What is the difference between cross-fertilization andself-fertilization?
In snapdragon plants, red is incompletely dominant over white flowers and produced a hybrid pink. 1. What is the probability of having pink flowers when pink snapdragon and white snapdragon are crossed? A. 0% B. 25% C. 50% D. 75% E. 100% 2. What is the probability of having white flowers when two pink snapdragon are crossed? A. 0% B. 25% C. 50% D. 75% E. 100% 3. What is the probability of having pink flowers when two pink snapdragon are crossed? A. 0% B. 25% C. 50% D. 75% E. 100% PLEASE ANSWER ALL OF THEM BECAUSE THEY ARE CONNECTED :)
In peas, purple flowers are dominant to white. If a purple-flowered, heterozygous plant were crossed with a white-flowered plant, what is the expected ratio of genotypes and phenotypes among the F1F1offspring? If two of the purple-flowered F1F1 offspring were randomly selected and crossed, what is the expected ratio of genotypes and phenotypes among the F2F2 offspring?
What would be the size and genotype of the F1 from a cross between a true-breeding 11 cm plant and a true-breeding 47 cm plant?
Given a cross of AaBbCcDdEe X aaBBccDdEe, what is the probability of getting an offspring with genotype AaBBCcddEe? Given a cross of AaBbCcDdEe X aaBBccDdEe, what is the probability of getting an offspring with phenotype ABCde? Given a cross of AaBbCcDdEe X AaBBccDdEe, what is the probability of getting the phenotype ABCDE? Given a cross of AaBbCcDdEe X AaBBccDdEe, what is the probability of getting AaBbCcDdEe?.
A genetic cross was made between two true-breeding parental fly strains. One parent strain displays red eyes and curly wings, while the other parent strain displays white eyes and vestigial wings. The resulting F1 generation flies were allowed to self-cross to produce F2 generation. The following data were obtained: F1 generation: all have red eyes and curly wings. F2 generation: 295 were red eyes and curly wings, 95 were red eyes and vestigial wings, 89 were white eyes and curly wings, 31 were white eyes and vestigial wings With this data above – please answer the following questions: Propose a hypothesis that explains the above inheritance pattern, test the goodness of fit between the data and your hypothesis using a chi square test. Use the chi square table from your textbook/online. Use the information obtained from the chi square table to explain what your calculated chi square results mean.
In snapdragon plants, red is incompletely dominant over white flowers and produced a hybrid pink. 1. What is the probability of having red flowers when red snapdragon and white snapdragon are crossed? A. 0% B/ 25% C. 50% D. 75% E. 100% 2., What is the probability of having pink flowers when pink snapdragon and white snapdragon are crossed? A. 0% B. 25% C. 50% D. 75% E. 100% 3. What is the probability of having white flowers when two pink snapdragon are crossed? A. 0% B. 25% C. 50% D. 75% E. 100% 4. What is the probability of having pink flowers when two pink snapdragon are crossed? A. 0% B. 25% C. 50% D. 75% E. 100%
What is the genotype of the F1 generation of the corn monohybrid cross described above? What is the phenotype of the F1 generation of the corn monohybrid cross described above? What are the possible maternal and paternal genotypes of the F1 gametes of the corn monohybrid cross described above? What is the genotype of the parents of the corn dihybrid cross described above? What are the phenotypes of the parents of the corn dihybrid cross described above? What are the possible genotypes of the parent gametes of the corn dihybrid cross described above? What is the genotype of the F1 generation of the corn dihybrid cross described above? What is the phenotype of the F1 generation of the corn dihybrid cross described above? What are the possible maternal and paternal genotypes of the F1 gametes of the corn dihybrid cross described above?
. What is the probability of producing a child that willphenotypically resemble either one of the two parentsin the following four crosses? How many phenotypically different kinds of progeny could potentiallyresult from each of the four crosses?a. Aa Bb Cc Dd × aa bb cc ddb. aa bb cc dd × AA BB CC DDc. Aa Bb Cc Dd × Aa Bb Cc Ddd. aa bb cc dd × aa bb cc dd