3. Please answer the following questions based on the ABC model; that is, three classes of homeotic genes control the floral organ identity. B A C (a) Please indicate on the diagram, which organs A class genes alone, A+B class genes, B+C class genes, and C class genes control respectively? (b) Tom studies the floral identity genes. He found a mutant only develop flowers with two whorls of sepals and two whorls of carpels. Which class(s) of floral homeotic genes may be affected based on the ABC model? (c) What are the genes responsible for the activation of C class gene expression in the third and fourth whorl of flower? How does the expression pattern of the C class gene establish through these regulators?
3. Please answer the following questions based on the ABC model; that is, three classes of homeotic genes control the floral organ identity. B A C (a) Please indicate on the diagram, which organs A class genes alone, A+B class genes, B+C class genes, and C class genes control respectively? (b) Tom studies the floral identity genes. He found a mutant only develop flowers with two whorls of sepals and two whorls of carpels. Which class(s) of floral homeotic genes may be affected based on the ABC model? (c) What are the genes responsible for the activation of C class gene expression in the third and fourth whorl of flower? How does the expression pattern of the C class gene establish through these regulators?
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
Chapter36: Reproduction And Development In Flowering Plants
Section: Chapter Questions
Problem 13TYK
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Can you answer all the parts to this question regarding the diagram
Transcribed Image Text:3. Please answer the following questions based on the ABC model; that is, three
classes of homeotic genes control the floral organ identity.
В
A
C
(a) Please indicate on the diagram, which organs A class genes alone, A+B class
genes, B+C class genes, and C class genes control respectively?
(b) Tom studies the floral identity genes. He found a mutant only develop flowers
with two whorls of sepals and two whorls of carpels. Which class(s) of floral
homeotic genes may be affected based on the ABC model?
(c) What are the genes responsible for the activation of C class gene expression
in the third and fourth whorl of flower? How does the expression pattern of the C
class gene establish through these regulators?
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