Results (a) Wild-type flower (b) Class A mutants (c) Class B mutants (d) Class C mutants Stamen Carpel Sepal- Petal- Whorl 1: Sepals Whorl 2: Petals Whorl 3: Stamens Whorl 4: Carpels Whorl 1: Carpels Whorl 2: Stamens Whorl 3: Stamens Whorl 4: Carpels Whorl 1: Sepals Whorl 2: Sepals Whorl 3: Carpels Whorl 4: Carpels Whorl 1: Sepals Whorl 2: Petals Whorl 3: Petals Whorl 4: Sepals Conclusion: In wild-type flowers: Gene Product Class A gene products - Class A + class B gene products- Class B+ class C gene products Class C gene products Flower whorl affected sepals in the 1st whorl petals in the 2nd whorl stamens in the 3rd whorl carpels in the 4th whorl 22.15 Analysis of homeotic mutants in Arabidopsis thalian led to an understanding of the genes that determine floral structures in plants.

Results (a) Wild-type flower (b) Class A mutants (c) Class B mutants (d) Class C mutants Stamen Carpel Sepal- Petal- Whorl 1: Sepals Whorl 2: Petals Whorl 3: Stamens Whorl 4: Carpels Whorl 1: Carpels Whorl 2: Stamens Whorl 3: Stamens Whorl 4: Carpels Whorl 1: Sepals Whorl 2: Sepals Whorl 3: Carpels Whorl 4: Carpels Whorl 1: Sepals Whorl 2: Petals Whorl 3: Petals Whorl 4: Sepals Conclusion: In wild-type flowers: Gene Product Class A gene products - Class A + class B gene products- Class B+ class C gene products Class C gene products Flower whorl affected sepals in the 1st whorl petals in the 2nd whorl stamens in the 3rd whorl carpels in the 4th whorl 22.15 Analysis of homeotic mutants in Arabidopsis thalian led to an understanding of the genes that determine floral structures in plants.

Name: Explain how (a) the absence of class B gene expression produces the fl
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Description: Explain how (a) the absence of class B gene expression produces the flower structures seen in class B mutants (see Figure 22.15c) and (b) the absence of class C gene expression produces the structures seen in class C mutants (see Figure 22.15d). Resu

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter37: Plant Signals And Responses To The Environment

Section: Chapter Questions

Problem 15TYK

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