In wild sunflowers, populations occurs that are either yellow or white. one variety of true breeding white flowered plants was crossed to another pure strain of white flowered plants. the resulting F1 progeny were yellow flowered plants. When the F1 progeny were intercrossed, the offspring were 56 yellow flowers and 44 white flowers. From these results, how many genes control the flower color? Is any one gene epistatic to any other gene

In wild sunflowers, populations occurs that are either yellow or white. one variety of true breeding white flowered plants was crossed to another pure strain of white flowered plants. the resulting F1 progeny were yellow flowered plants. When the F1 progeny were intercrossed, the offspring were 56 yellow flowers and 44 white flowers. From these results, how many genes control the flower color? Is any one gene epistatic to any other gene

Name: In wild sunflowers, populations occurs that are either yellow or white
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: In wild sunflowers, populations occurs that are either yellow or white. one variety of true breeding white flowered plants was crossed to another pure strain of white flowered plants. the resulting F1 progeny were yellow flowered plants. When the F1

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter5: The Inheritance Of Complex Traits

Section: Chapter Questions

Problem 7QP: Sunflowers with flowers 10 cm in diameter are crossed with a plant that has 20-cm flowers. The F1...

See similar textbooks

Similar questions

Sunflowers with flowers 10 cm in diameter are crossed with a plant that has 20-cm flowers. The F1 plants have flowers 15 cm in diameter. In the F2 generation, 4 flowers are 10 cm in diameter and 4 are 20 cm in diameter. Between these are 5 phenotypic classes with diameters intermediate to those at the extremes. a. Assuming that the alleles that contribute to flower diameter act additively, how many genes control flower size in this strain of sunflowers? b. How much does each additive allele contribute to flower diameter? c. What size flower makes up the largest phenotypic class?
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?
A diploid plant has red flowers, heavy seeds and large leaves. The plant is a heterozygous for the following three genes:flower color (gene “F”),seed weight (gene “S”),and leaf size (gene “L”). This plant is testcrossed to a plant, which has white flowers, light seeds, and small leaves, the progeny of the testcross is as follows: 222 Red, heavy, large 228 White, light, small 224 Red, heavy, small 226 White, light, large 24 Red, light, large 26 White, heavy, small 25 White, heavy, large 25 Red, light, small Based on this results, which of the following statement is correct? Question 9 options: All three genes are on different chromosomes. Genes S and L are linked, while F assorts independently. Genes F and S are linked, while L assorts independently. Genes F and L are linked, while S assorts independently.
. In four-o’clocks, the allele for red flowers is incompletely dominant to the allele for white flowers, so heterozygotes have pink flowers. What ratios of flower colors would you expect among the offspring of the following crosses: (a) pink × pink, (b) white × pink, (c) red × red, (d) red × pink, (e) white × white, and (f) red × white? If you specifically wanted to produce pink flowers, which of these crosses would be most efficient?
Many of the color varieties of summer squash are determined by two different interacting genes A and B: AA or Aa gives white colored squash, aaBB or aaBb gives yellow squash, and aabb produces green squash. A plant producing white squash is crossed with a plant producing green squash. One half of the offspring produces white squash; the other half produces green squash. What is the genotype of the parent plant producing white squash? AAbb AABB AaBb Aabb AaBB
In snapdragons, red flower color (R) is incompletely dominant over white flower color (r), so that the heterozygote has pink flowers. A red snapdragon is crossed with a white snapdragon, and the F1 are intercrossed to produce F2. What is the genotype and phenotypes of the F1 and F2, along with their expected proportions? If the F1 are backcrossed to the white parent, what will be the expected genotype and phenotype of the offspring? If the F1 are backcrossed to the red parent and the resulting progeny are intercrossed, what is the expected proportions of genotypes and phenotypes in the progeny?
In corn plants, a dominant allele Z inhibits kernel color, while the recessive allele z permits color when homozygous. At a different locus, the dominant allele X causes purple kernel color, while the homozygous recessive genotype causes red kernel color. If corn plants heterozygous for both the Z and X genes are crossed, what are the chances that the offspring will have purple kernels? Enter your answer as a decimal fraction in the box (e.g. 0.25).
You have a pure breeding plant with red flowers, yellow seeds and red-veined leaves. You cross this with another pure breeding plant that has white flowers, pink seeds and yellow leaf veins. All of the offspring (F1) have white flowers, yellow seeds and orange leaf veins. Assuming all three loci are independently assorting, use this information to answer the following question: If two F1 offspring are crossed with each other and 1000 F2 are obtained, approximately how many offspring should have orange leaf veins? a. 1000 b. 750 c. 500 d. 250 e. Cannot be determined with this information
In a certain species of plant, a dihybrid (round, pink seeds) is mated with a test-cross strain (wrinkled, white seeds). The following progeny are obtained: round, pink – 440 round, white – 76 wrinkled, pink - 84 wrinkled, white - 400 What is the distance (in map units) between the two genes in question? Your answer should be a single whole number between 0 and 50. Choose 50 if you think the genes are not linked.
In a unique species of plants, flowers may be yellow, blue, red, or mauve. All colors may be true breeding. If plants with blue flowers are crossed to red-flowered plants, all F1 plants have yellow flowers. When these produced an F2 generation, the following ratio was observed: 9/16 yellow: 3/16 blue: 3/16 red: 1/16 mauve In still another cross using true-breeding parents, yellow-flowered plants are crossed with mauve-flowered plants. Again, all F1 plants had yellow flowers and the F2 showed a 9:3:3:1 ratio, as just shown. (a) Describe the inheritance of flower color by defining gene symbols and designating which genotypes give rise to each of the four phenotypes. (b) Determine the F1 and F2 results of a cross between truebreeding red and true-breeding mauve-flowered plants.
You crossed two true-breeding lines of violet-flowered and white-flowered peas. Is it possible to establish a true-breeding line of the genotype found in the offspring of your cross? Why or why not?
Two pure-breeding strains of flies are mated, and the F1 are intercrossed. The first strain has curled wings and black bodies. The second strain has straight wings and brown bodies. The F2 progeny are 271 straight wings with brown bodies, 31 curled wings with black bodies, 94 curled wings with brown bodies and 90 straight wings with black bodies. If instead of the above, assume the wing shape gene and the body color gene are completely linked. From parents that are curled winged with brown bodies mated to straight winged with black bodies, what would be the outcome of an F1 intercross? (Specify the phenotypes and the frequency of each expected).