BIOLOGY W/CONNECT >IP<
11th Edition
ISBN: 9781259910487
Author: Raven
Publisher: MCG CUSTOM
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Chapter 25, Problem 10U
Independently derived mutations of the CTC gene in plants
a. suggests bilateral floral symmetry among all plant is homologous.
b. establishes that radial floral symmetry is preferred by pollinators.
c. establishes that radial floral symmetry is derived for all plants.
d. None of the choices are correct.
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A. What traits are controlled by the branching gene and fruitcase gene? And how were they determined to be major players in the development of maize?
B. Teosinte looks like a terrible plant to begin to domesticate for agricultural purposes. What hypothesis is put forth to explain farmers’ early interest in the plant?
C. Often successful domestication of a plant or animal is due to the fact that this involved just a few gene changes. In what situation can changes in just a few genes dramatically change an organism's entire appearance?
D. Who is Norman Borlaug?
(a) What is the mutant that helps us to understand the adaxial identity of leaf development and the laminar outgrowth?
(b) What is the mutant phenotype?
(c) Which kind of protein does this gene encode?
A. What is the wild progenitor of maize and where is it found?
B. George Beadle concluded that this plant was the likely ancestor of maize (corn) even though the two plants appear very different. What evidence did Dr. Beadle collect that led to his conclusion?
C. How long ago was maize domesticated and what evidence was utilized to determine this?
D. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal?
Chapter 25 Solutions
BIOLOGY W/CONNECT >IP<
Ch. 25 - Heterochrony is a. the alteration of the spatial...Ch. 25 - Vast differences in the phenotypes of organisms as...Ch. 25 - Homoplastic structures a can Involve convergence...Ch. 25 - Hox genes are a. found in both plants and animals....Ch. 25 - The Brachyury and Thx5 in vertebrates and the Ap3...Ch. 25 - Which of the following statements about Pax6 is...Ch. 25 - Which of the following statements about TbxS is...Ch. 25 - Prob. 8UCh. 25 - Transcription factors are a. genes. b. sequences...Ch. 25 - Independently derived mutations of the CTC gene in...
Ch. 25 - Prob. 1ACh. 25 - Prob. 2ACh. 25 - The Eda allele that causes reduced armor...Ch. 25 - Prob. 4ACh. 25 - The paired-like homeodomain transcription factor 1...Ch. 25 - From the chapter on evolution of development it...Ch. 25 - Phenotypic diversity among major groups of...Ch. 25 - Critique the argument that eyes have multiple...Ch. 25 - Prob. 5SCh. 25 - Having read all of this chapter return to the clam...
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- Suppose a geneticist introduced a small interfering RNA (siRNA) that was complementary to the FLC mRNA in Figure 17.3. What would be the effect on flowering of Arabidopsis? Explain your answer.arrow_forwardCan you clearly type the answers to the all the parts to this question please a) What is the role of the LEAFY gene in floral development? (b) What is the phenotype of the leafy mutant? (c) Most of the ABC program genes are directly regulated by the transcription factor LEAFY (LFY). Still, LFY is expressed broadly throughout the floral meristem when the discrete A, B, and C domains are established. Discuss how this single broadly expressed transcription factor can generate distinct domains of ABC gene expression. Feel free to use diagrams.arrow_forwardWhy the transfer to wild plants from crops of genes that provide pesticide and insecticide resistance may have evolutionary consequences? Explain.arrow_forward
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