The ABCDE Model of flower development dictates the combination of transcription factors require to initiate each whorl of a flower. Based on the diagram below, what would happen if: Carpels and ovules Petal Stamen Sepal 2 3 4. Whorl B Genes 25-40 The ABCDE model of floral organ determination in Arabidopsis In addition to the A-, B-, and C-function genes of the ABC model, this model includes two additional gene classes, D and E. In the ABCDE model, class A + E genes specify sepals; class A +B+ E, petals; class B + C + E, stamens; classC + E, carpels; and class C+D+ E, ovules. 1. Gene D was non-functional: 2. Gene E was non-functional: 3. Only Gene A was functional: 4. Gene B and E were non-functional: 5. Only Gene A and Gene E were functional:

The ABCDE Model of flower development dictates the combination of transcription factors require to initiate each whorl of a flower. Based on the diagram below, what would happen if: Carpels and ovules Petal Stamen Sepal 2 3 4. Whorl B Genes 25-40 The ABCDE model of floral organ determination in Arabidopsis In addition to the A-, B-, and C-function genes of the ABC model, this model includes two additional gene classes, D and E. In the ABCDE model, class A + E genes specify sepals; class A +B+ E, petals; class B + C + E, stamens; classC + E, carpels; and class C+D+ E, ovules. 1. Gene D was non-functional: 2. Gene E was non-functional: 3. Only Gene A was functional: 4. Gene B and E were non-functional: 5. Only Gene A and Gene E were functional:

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter17: Developmental Genetics

Section: Chapter Questions

Problem 18TYU: INTERPRET DATA Flower parts are arranged in four concentric circles: sepals, petals, stamens, and...

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What will be the flower structure of a plant in which expression of the following genes is inhibited in the specified whorls? a. Expression of class B genes is inhibited in the second whorl, but not in the third whorl. b. Expression of class C genes is inhibited in the third whorl, but not in the fourth whorl. c. Expression of class A genes is inhibited in the first whorl, but not in the second whorl. d. Expression of class A genes is inhibited in the second whorl, but not in the first whorl.
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Suppose a flower had normal expression of genes A and Cand expression of gene B in all four whorls. Based on the ABChypothesis, what would be the structure of that flower, startingat the outermost whorl?(A) carpel-petal-petal-carpel(B) petal-petal-stamen-stamen(C) sepal-carpel-carpel-sepal(D) sepal-sepal-carpel-carpel
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INTERPRET DATA Flower parts are arranged in four concentric circles: sepals, petals, stamens, and carpel. According to the ABC model of floral organ development in Arabidopsis, class A genes are needed to specify sepals, the A and B genes to specify petals, the B and C genes to specify stamens, and class C genes to specify the carpel. If a mutation occurs in one of the B genes, rendering it inactive, what will the resulting flowers consist of?
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in flowering control of plant, describe a situation wherein there are mutations in at least one or all of the genes responsible for control of the floral development.